Season One
- #1: The Case of the Restless Redhead 9/21/57
- Whitney Blake as Evelyn Bagby
- Vaughn Taylor as Mr. Boles
- Jane Buchanan as Mrs. Boles
- Ralph Clanton as Aldritch
- Dick Rich as Sgt. Holcomb
- Gloria Henry as Helene Chaney
- Grandon Rhodes as Judge Kippen
- Clark Howat as Policeman
- Norman Leavitt as Mr. Redfield
- Helen Mayon as Mary Thompson
- Jack Gargan as Court Clerk
- Lorraine Martin as Drake's Operator
- #2: The Case of the Sleepwalker's Niece 9/28/57
- John McNamara as Peter Cole
- Hillary Brooke as Doris Cole
- John Archer as Frank Maddox
- Nancy Hadley as Edna Hammar
- Darryl Hickman as Steve Harris
- Helen Mowery as Lucille Mays
- Thomas B. Henry as Ralph Duncan
- Harry Hickox as Phillip Kendall
- Kenneth MacDonald as Judge
- Tony Michaels as Jackson
- Clark Howat as Policeman
- Fred Graham as Sheriff
- Joey Ray as Detective
- Jack Harris as Court Clerk
- #3: The Case of the Nervous Accomplice 10/5/57
- Maggie Hayes as Sybil Granger
- Greta Thyssen as Roxy Howard
- William Roerick as Bruce Granger
- Robert Cornthwaite as Herbert Dean
- Richard Hale as George Lutts
- James Gavin as Jerome Keddie
- Jean Howell as Vinnie Dean
- Claudia Bryar as Ruth Marvel
- Morris Ankrum as Judge Hoyt
- Tyler McVey as Sam Elkins
- Robert Bice as Hurley
- Norman Leavitt as Alexander Redfield
- George Eldredge as Fenton Thompson
- Gail Bonney as Harriet
- Sam Flint as Mr. Rector
- Jack Harris as Court Clerk
- #4: The Case of the Drowning Duck 10/12/57
- Carol Kelly as Lois Reed
- Noland Leary as Judge Meeham
- Victor Sutherland as Clyde Waters
- Carolyn Craig as Helen Waters
- Don Beddoe as George Norris
- Paula Winslow as Martha Norris
- Gary Vinson as Marv Adams
- Harry Landers as Donald Briggs
- Olive Blakeney as Mrs. Adams
- Rusty Lane as Chief Glass
- Tom London as Cabbie
- Phillip Tonge as Cortland
- Joseph Forte as Dr. Creel
- Helen Hatch as Secretary
- Clifford Botelho as Pedro
- #5: The Case of the Sulky Girl 10/19/57
- Olive Sturgis as Fran Celane
- William Schallert as Graves
- Lillian Bronson as Clara
- Robert Griffin as Crinston
- Connie Cezon as Gertie
- Brian Hutton as Rod Gleason
- Raymond Greenleaf as Norton
- Howard Wendell as Judge Purley
- Paul Bryar as Sgt. Wilbur
- Frank Wilcox as Judge Markham
- Bob Kline as Officer Delaney
- Larry Thor as Police Surgeon
- Jack Gargan as Court Clerk
- Dick Winslow as Reporter
- #6: The Case of the Silent Partner 10/26/57
- Peggy Maley as Lola Florey
- Dan Seymour as Harry Marlow
- Anne Barton as Mildred Kimber
- Mark Roberts as Bob Kimber
- Cyril Delevanti as Tulloch
- Michael Emmet as Sam Lynk
- Joe Abdullah as Mack Fried
- Henry Hunter as Dr. Rubin
- Dawn Richard as Ginger Kay
- Jimmy McCallion as Veteran Reporter
- Janet Stewart as Girl Reporter
- Dan Sheridan as Welsh
- Ed Stevlingson as Mr. Henry
- Jann Darlyn as Miss Carling
- Charles Franc as Mr. Curtis
- Joe Quinn as Fire Chief
- Don Anderson as Policeman
- Richard Geary as Interne
- #7: The Case of the Angry Mourner 11/2/57
- Sylvia Field as Belle Adrian
- James Westerfield as Sheriff Elmore
- Joan Weldon as Marion Keats
- Paul Fix as District Attorney Hale
- Dorothy Adams as Betsy Burris
- Malcolm Atterbury as Sam Burris
- Barbara Eden as Carla Adrian
- Peter Nelson as Harvey Delano
- Eve McVeagh as Nora Fleming
- Addison Richards as George Lansing
- Eric Sinclair as Mark Cushing
- Harry Tyler as Court Clerk
- William Boyett as Motor Cop
- #8: The Case of the Crimson Kiss 11/9/57
- Jean Willes as Anita Bonsal
- Sue England as Fay Allison
- Douglas Dick as Dane Grover
- Gloria McGhee as Shirley Tanner
- John Holland as Carver Clement
- Connie Cezon as Gertie
- Joi Lansing as Vera Payson
- Douglas Evans as Don Ralston
- Frances Bavier as Louise Marlow
- John Harmon as Lab Man
- Frank Wilcox as Judge Randolph
- Howard Culver as Dr. Hawley
- #9: The Case of the Vagabond Vixen 11/16/57
- Robert Ellenstein as John Addison
- Catherine McLeod as Lorraine Ferrell
- Carol Leigh as Veronica Dale
- Peggy Converse as Myrtle Northrup
- James Anderson as Peter Handsell
- Barbara Pepper as Mrs. Dale
- Paul Cavanagh as Edgar Ferrell
- Robert Carson as Sgt. Bent
- Pierre Watkin as Judge Keetley
- Perry Ivins as Print Man
- Russell Trent as Neff
- Jack Gargan as Court Clerk
- Lee Miller as Deputy Sheriff
- #10: The Case of the Runaway Corpse 11/23/57
- June Dayton as Myrna Davenport
- James Maloney as Dr. Renault
- Sarah Selby as Louise Ansel
- Adam Williams as Jason Beckmeyer
- Rebecca Welles as Rita Norge
- John Stephenson as Ed Davenport
- Michael Fox as Dr. Hoxie
- William Challee as Mr. Medford
- Keith Alan as Officer Boom
- Robin Morse as Dr. Mitchell
- Martha Wentworth as Motel Manager
- Jack Kenney as Kenny
- Ed Jerome as Judge
- Jack Harris as Court Clerk
- #11: The Case of the Crooked Candle 11/30/57
- Nancy Gates as Martha Bradford
- Whit Bissell as Larry Sands
- Doris Singleton as Rita
- Robert Clarke as Jack Harper
- Francis McDonald as Capt. Noble
- Henry Corden as Nikolides
- Bruce Cowling as Joe Bradford
- Frank Wilcox as Judge Newark
- Helene Santley as Receptionist
- Hal Taggart as Clerk
- #12: The Case of the Negligent Nymph 12/7/57
- Connie Cezon as Gertie
- Joan Banks as Karen Alder
- David Lewis as George Alder
- James Griffith as Arthur Dorian
- Peggy Castle as Sally Fenner
- Nadja Posey as Nina Santos
- James Nusser as Judge
- Forrest Lewis as Dr. Murray
- John Cliff as Guard Hess
- Robert Tafur as Martinez
- Troy Melton as Patrolman
- Irene Cavillo as Waitress
- Elvira Corona as Dancer
- Michael Kopcha as Police Photographer
- #13: The Case of the Moth-Eaten Mink 12/14/57
- Douglas Kennedy as Sgt. Jaffrey
- Robert Osterloh as Morey Allen
- Kay Faylen as Dixie Dayton
- Than Wyenn as Frank Hoxie
- Roxanne Arlen as Mae Nolan
- Grandon Rhodes as Judge Lennox
- Marc Krah as George Fayette
- Connie Cezon as Gertie
- Brian Hutton as Parking Attendant
- Jack Gargan as Bailiff
- Lyn Guild as Drake's Operator
- #14: The Case of the Baited Hook 12/21/57
- Geraldine Wall as Abigail E. Leeds
- Willard Sage as Robert Dawson
- Judith Braun as Carol Stanley
- Alfred Hopson as Richard Ellis
- Mary Castle as Enid Shaw
- George Neise as Albert Tydings
- Connie Cezon as Gertie
- Peg Whitman as Receptionist
- Lyle Latell as Officer
- Frank Marlowe as Janitor
- Maurice McEndree as Operative
- #15: The Case of the Fan Dancer's Horse 12/28/57
- Susan Cummings as Lois Fenton
- Scott Elliott as Arthur Sheldon
- Judy Tyler as Cherie Chi-Chi
- Robert Bice as Faulkner
- Minerva Urecal as Landlady
- Hugh Sanders as John Callender
- Sydney Smith as Judge Donahue
- John Brinkley as Jasper Fenton
- Connie Cezon as Gertie
- Rusty Westcoatt as Sgt. Holcomb
- James Nolan as Meeker
- Herbert C. Lytton as Dr. Lambert
- #16: The Case of the Demure Defendant 1/4/58
- Christine White as Nadine
- Clem Bevans as Capt. Hugo
- Fay Baker as Marian Newburn
- Walter Coy as Lester Newburn
- Barry Atwater as Dr. Denair
- Sherwood Price as John Locke
- Alexander Campbell as Wellman
- Morris Ankrum as Judge
- Connie Cezon as Gertie
- Maurice Manson as Dr. Granby
- Steven Geray as Korbell
- Joe Mell as Stand Owner
- Paul Hahn as Ballistic's Man
- Ashley Cowan as Messenger
- John Mitchum as Operative
- Jack Harris as Court Clerk
- Lida Piazza as Miss Wilson
- Rickie Sorensen as Arthur Lindner
- Leilani Sorensen as Small Girl
- #17: The Case of the Sun Bather's Diary 1/11/58
- Susan Morrow as Arlene Dowling
- Carl Betz as Dr. Chandler
- Gertrude Michael as Helen Rucker
- Peter Leeds as Bill Emory
- Ralph Moody as George L. Ballard
- Connie Cezon as Gertie
- Kenneth MacDonald as Judge
- Paul Brinegar as Tom Sackett
- Walter Reed as Detective Myers
- Nesdon Booth as Mr. Hartsel
- Jon Locke as Sam Elliott
- John Pickard as Sergeant Neil
- #18: The Case of the Cautious Coquette 1/18/58
- Virginia Gregg as Sheila Cromwell
- Donald Randolph as Steven Argyle
- Kipp Hamilton as Elaine Barton
- Harry Jackson as Harry Pitkin
- Chester Stratton as Bates
- Sid Clute as Frederick Arms
- James Seay as Ross Hollister
- Sydney Smith as Judge Osborn
- K. L. Smith as Joe Raymond
- Brett Halsey as Robert Finchley
- Ed Hinton as Sheriff Mark Daley
- Stephen Ellsworth as Sgt. Kenny
- Ralph Sanford as Pat
- Jeanne Bates as Western Union Clerk
- Paul Hahn as Sgt. Davis
- Weaver Levy as Jimmy
- Jack Gargan as Court Clerk
- #19: The Case of the Haunted Husband 1/25/58
- Karen Steele as Doris Stephanak
- Grant Richards as Jerry Heywood
- Patricia Hardy as Claire Olger
- Fredd Wayne as Tanner
- Helen Westcott as Marcia Greeley
- John Hubbard as Michael Greeley
- Harlan Warde as Harold Hanley
- Herb Vigran as Charlie (Bartender)
- Sydney Smith as Judge
- Jack Gargan as Court Clerk
- #20: The Case of the Lonely Heiress 2/1/58
- Robert H. Harris as Edmund Lacey
- Anna Navarro as Delores Coterro
- L. Q. Jones as Charles Barnaby
- Kathleen Crowley as Marylin Clark
- Richard Crane as George Moore
- Betty Lou Gerson as Agnes Sims
- Gail Kobe as Margo
- Robert Williams as Lt. Kramer
- Frank Wilcox as Judge
- Robert McQueeney as Dr. L. J. Palmer
- #21: The Case of the Green-eyed Sister 2/8/58
- Connie Cezon as Gertie
- Virginia Vincent as Harriet Bain
- Dan Riss as Arthur West
- Robin Hughes as Addison Doyle
- Tina Carver as Sylvia Bain
- Carl Benton Reid as Ned Bain
- James Bell as J. J. Stanley
- Morris Ankrum as Judge
- Dennis King, Jr. as Dr. Hanover
- Alan Gifford as Dr. Fisher
- Charles Tannen as Night Clerk
- Leonard Bell as Taxi Driver
- Jack Gargan as Court Clerk
- #22: The Case of the Fugitive Nurse 2/15/58
- Sheppard Strudwick as Dr. Morris
- Bethel Leslie as Janet Morris
- Dabbs Greer as Dave Kirby
- Maxine Cooper as Gladys Strome
- Jeanette Nolan as Mrs. Kirby
- Woodrow Chambliss as Phil Reese
- Helen Brown as Mrs. Strome
- Anthony Lettier as Arthur Strome
- Arthur Hanson as Lt. Brewer
- Larry Blake as Smith
- George Davis as Frederick
- Sydney Mason as Detective Ralston
- Lee Roberts as Detective Ron Jacks
- Gil Frye as Marshall
- Joey Ray as Workman
- Jack Kenney as Detective
- Owen Cunningham as Judge
- Jack W. Harris as Court Clerk
- #23: The Case of the One-eyed Witness 2/22/58
- Angie Dickinson as Marian Fargo
- Louis Van Rooten as Samuel Carlin
- Dorothy Green as Diana Maynard
- Paul Picerni as Charles Gallagher
- Eve Miller as Nora Kelly
- Peter Adams as Arthur Fargo
- Vincent G. Perry as Judge
- Richard Benedict as Steve Daniels
- Jan Arvan as Pierre
- Sam Gilman as George Danvers
- Jean Del Val as Waiter
- Ralph Montgomery as Bus Clerk
- Jack W. Harris as Court Clerk
- Ray Kellogg as Detective
- John Sands as Charter Pilot
- Doris Wiss as Suzie
- Shirley Buchanan as Phone Operator
- #24: The Case of the Deadly Double 3/1/58
- Constance Ford as Helen Reed
- Denver Pyle as Robert Crane
- Carole Mathews as Cora Dunbar
- Paul Langton as Harry Vance
- Murray Hamilton as Johnny Hale
- Abraham Sofaer as Dr. Maitland
- Louise Truax as Sarah
- Carleton G. Young as David Reed
- Pierre Watkin as Judge
- Frank Jenks as Cab Driver
- Clark Howat as Sergeant Grant
- Carlyle Mitchell as Dr. Desmond
- Jack Gargan as Court Clerk
- George E. Stone as George
- Peter Opp as Johnson
- Josef Elman as Tony
- Kellogg Junge, Jr. as Tommy Reed
- #25: The Case of the Empty Tin 3/8/58
- Toni Gerry as Doris Hocksley
- Warren Stevens as Alan Neil
- Olive Deering as Rebecca Gentrie
- Benson Fong as Gow Loong
- Mary Shipp as Miriam Hocksley
- Anthony Jochim as Elston Carr
- Frank Wilcox as Judge
- Otto Waldis as John Lowell
- Bert Holland as Dr. Morton
- #26: The Case of the Half-Wakened Wife 3/15/58
- Phyllis Avery as Marion Shelby
- Stewart Bradley as Frank Lawton
- Barbara Lawrence as Ellen Waring
- Claude Akins as Phillip Dix
- Jonathan Hole as Arthur Williams
- Tom Palmer as Scott Shelby
- Jason Johnson as Judge Ellsworth
- Howard Petrie as Ben Parker
- Peter Hansen as Howard Black
- Paul E. Burns as Richy
- Frederick Draper as Ted Young
- #27: The Case of the Desperate Daughter 3/22/58
- Gigi Perreau as Doris Bannister
- Robert F. Simon as Edward Bannister
- Osa Massen as Lisa Bannister
- Werner Klemperer as Stefan Riker
- Don Durant as Gary Marshall
- Pierre Watkin as Judge
- Wendell Holmes as Dr. Forbes
- Robert B. Williams as Det. Quincey
- Gere Craft as Helene
- Ivan Bonar as Det. Marlowe
- Paul Genge as Det. Davis
- Patricia Mowry as Waitress
- Jack Gargan as Court Clerk
- #28: The Case of the Daring Decoy 3/29/58
- H. M. Wynant as Daniel Conway
- Marie Windsor as Linda Griffith
- Jack Weston as Fred Calvert
- Jacqueline Scott as Amelia Armitage
- John Mack Brown as Warner Griffith
- Natalie Norwick as Mavis
- Grandon R. Rhodes as Judge
- Pamela Duncan as Rose Calvert
- Louise Lorimer as Miss Eastman
- Donald Foster as H. B. Varnell
- Jack Gargan as Court Clerk
- #29: The Case of the Hesitant Hostess 4/5/58
- Karen Sharpe as Inez Kaylor
- Fred Sherman as Albert Sanders
- June Vincent as Martha Rayburn
- Les Tremayne as Fred Archer
- Ned Wever as Joe Gibbs
- Betty Utey as Kim Lane
- Robin Raymond as Secretary
- Gil Frye as Det. Ralph Faulkner
- Jacqueline Holt as Christine
- Michael Mason as Larry Coles
- Fay Roope as Judge
- George Cisar as Mr. Wickett
- Robert Karnes as Det. Purvis
- Paul Serra as Court Stenographer
- John Alvin as Sam Walsh
- #30: The Case of the Screaming Woman 4/26/58
- Ruta Lee as Connie Cooper
- Berry Kroeger as Eugene Jarech
- Josephine Hutchinson as Leona Walsh
- Arthur Shields as Dr. George Barnes
- Marian Seldes as Mary K. Davis
- Philip Ober as Ralph Davis
- Karin Booth as Susan Marshall
- Don Gardner as Bob Shroeder
- Morris Ankrum as Judge Cameron
- Phil Arnold as Apartment Manager
- Richard Ryan as Mr. Hill
- Jeanne Bates as Miss Clay
- Marian Collier as Attendant
- Jack Gargan as Court Clerk
- #31: The Case of the Fiery Fingers 5/3/58
- Mary La Roche as Vicky Braxton
- Edward Norris as George Gordon
- Lenore Shanewise as Nora Mae Quincey
- Susan Dorn as Louise Gordon
- Fay Spain as Charlotte Lynch
- Robert Burton as Dr. W. Fremont
- Charles Lane as Dr. Williams
- Sydney Smith as Judge
- Connie Cezon as Gertie
- Charles Davis as Dr. J. Meecham
- Gilbert Frye as Detective
- Jack Gargan as Court Clerk
- #32: The Case of the Substitute Face 5/10/58
- Lurene Tuttle as Anna Houser
- Maureen Cassidy as Laura Houser
- Joan Tabor as Evelyn Whiting
- Ralph Dumke as Roland Carter
- Theodore Newton as Carl Houser
- Maurice Wells as Andrew Dale
- Frank Wilcox as Judge Romley
- Gavin Gordon as Capt. Walters
- Donald Lawton as Daniel James
- Noel Drayton as Purser
- Stanley Farrar as Accountant
- William Quinn as Christopher Walsh
- Bobbie Collentine as Marta Lawrence
- #33: The Case of the Long-Legged Models 5/17/58
- Peggy McCay as Stephanie Falkner
- Alix Talton as Eva Elliott
- Joe De Santis as George Castle
- Lyle Talbot as Michael Garvin Sr.
- William Swan as Michael Garvin Jr.
- Russell Thorson as Glenn Falkner
- Frank Wilcox as Judge
- Ann McCrea as Margo Garvin
- Ray Walker as Salesman
- Jack Harris as Court Clerk
- Billy Snyder as Stickman
- Joey Ray as Policeman
- Carol Anderson as Model
- #34: The Case of the Gilded Lily 5/24/58
- Peggy Knudsen as Sheila Bowers
- Barbara Baxley as Enid Griffin
- Mari Aldon as Anne Brent
- Grant Withers as Stewart Brent
- Richard Erdman as Arthur Binney
- Wally Brown as Harry Mitchell
- Fay Roope as Judge Kyle
- Alan Dexter as Dr. Cortley
- Carleton Young as Dr. Parsons
- Jack Gargan as Court Clerk
- Cy Malis as Garage Attendant
- Max Wagner as Janitor
- #35: The Case of the Lazy Lover 5/31/58
- Harry Townes as Bob Fleetwood
- Frances Helm as Bernice Archer
- James Bell as P. E. Overbrook
- Yvonne Craig as Patricia Faxon
- Neil Hamilton as Bertrand Allred
- Ann Lee as Lucille Allred
- Kenneth R. MacDonald as Judge
- Len Hendry as Officer
- #36: The Case of the Prodigal Parent 6/7/58
- Virginia Field as Irene Collaro
- Herbert Rudley as George Durell
- Fay Wray as Ethel Harrison
- Andra Martin as Lorraine Stevens
- Ann Doran as Claire Durell
- John Hoyt as Joseph Harrison
- Terry Becker as Philip Larkin
- Morris Ankrum as Judge
- Nancy Kulp as Sarah Winslow
- Chet Stratton as Mr. Alcorn
- Michael Fox as Dr. Samuel Anders
- Richard Bull as Court Reporter
- Dean Casey as Det. Sanchez
- Leo Needham as Officer Norton
- #37: The Case of the Black-eyed Blonde 6/14/58
- Whitney Blake as Diana Reynolds
- Irene Hervey as Helen Bartlett
- R. G. Armstrong as Matthew Bartlett
- Ludwig Stossel as Otto Kessler
- Jan Merlin as Tony Davis
- Phyllis Coates as Norma Carter
- Judith Ames as Marian Shaw
- Grandon Rhodes as Judge
- Francis De Sales as Dr. Rose
- Jack Lomas as Sgt. Brewster
- Frank Sully as Cop
- Joe Dominguez as Carlos Figueroa
- Casey Peters as Bobby Carter
- #38: The Case of the Terrified Typist 6/21/58
- Alan Marshall as James Kincaid Alias Duane Jefferson
- Joanna Moore as Patricia Taylor
- Joan Elan as Mrs. Lumis
- Ben Wright as Walter Lumis
- Connie Cezon as Gertie
- Jack Raine as George Baxter
- Kenneth R. MacDonald as Judge
- Harald Dyrenforth as Henrich
- Hank Patterson as Jack Gilly
- Jack Gargan as Court Clerk
- James Stone as Jury Foreman
- Frankie Darro as Elevator Operator
- Red Morgan as Muscleman
- Steve Carruthers as Duane Jefferson
- #39: The Case of the Rolling Bones 6/28/58
- Joan Camden as Donna Knox
- Mary Anderson as Arlene Scott
- Edgar Stehli as Daniel Reed
- Arthur Space as Willard Scott
- King Calder as Maury Lewis
- Kitty Kelly as Millie Foster
- Simon Scott as George Metcalf
- Richard Gaines as Judge Treadwell
- Sid Tomack as Victor Kowalski
- Morris Ankrum as Judge Morrisey
- Richard Aherne as Dr. Norris
- Alan Lee as Dave Kemp
- William Remick as Herbert Walker
- James Nolan as Attendant
- Ted Stanhope as Court Clerk
- Olan Soulé as Teller
- Lee Miller as State Trooper