Season Nine
- #242: The Case of the Laughing Lady 9/12/65
- Constance Towers as Leona Devore
- Jean Hale as Carla Chaney
- John Abbott as Dr. Durwood Tobey
- Bernard Fox as Peter Stange
- John Dall as Roan Daniel
- Allison Hayes as Cho Sin
- Mickey Manners as Lenny Linden
- John Gallaudet as Judge
- Shirley O'Hara as Superintendent
- Michael Rye as Commentator
- Irene Anders as Matron
- #243: The Case of the Fatal Fortune 9/19/65
- Julie Adams as Patricia L. Kean
- Lee Philips as Gordon Evans
- Jesse White as Max Armstead
- Ford Rainey as Dr. Fisher
- Nan Martin as Beth Fuller
- Dean Harens as Daniel Buckley
- James Lanphier as Marius Stone
- Grandon Rhodes as Judge
- Nora Marlowe as Landlady
- Alex Bookston as Desk Clerk
- Belle Mitchell as Gypsy
- #244: The Case of the Candy Queen 9/26/65
- Nancy Gates as Claire Armstrong
- Patricia Smith as Wanda Buren
- Nina Shipman as Carol Olin
- Robert Rockwell as Ed Purvis
- H. M. Wynant as Tony Mario
- John Napier as Mark Chester
- John Archer as Harry Arnold
- Kenneth MacDonald as Judge
- Kitty Kelly as Landlady
- Walter Mathews as Intern
- William Boyett as Detective
- Lee Miller as Sgt. Brice
- Sam Flint as Old Man
- Charles Stroud as Court Clerk
- Russ Whiteman as Steward
- Bebe Kelly as Hat Check Girl
- #245: The Case of the Cheating Chancellor 10/3/65
- Peter Helm as Bob Hyatt
- Louise Latham as Shirley Logan
- James Noah as Van Fowler
- Michael Walker as Joe Price
- G. B. Atwater as Dr. Stuart Logan
- Peter Hobbs as James Hyatt
- Jay Barney as District Attorney
- Lee Meriwether as Evelyn Wilcox
- Adrianne Ellis as Myra Finlay
- Linda Leighton as Mrs. Hyatt
- Joseph Mell as Medical Examiner
- Phil Chambers as Guard
- Stacy Keach as Judge
- #246: The Case of the Impetuous Imp 10/10/65
- Stuart Erwin as Henry Simmons
- Bonnie Jones as Diana Carter
- Hanna Landy as Helga Dolwig
- Don Dubbins as Bill Vincent
- Jeff Cooper as Henning Dolwig
- Frank Marth as Mike Carson
- Richard Webb as Addison Powell
- James McCallion as Harvey Blake
- Byron Morrow as Judge Brawley
- Michael Fox as Dr. Lund
- Ed Prentis as Judge Morton
- Lee Miller as Sgt. Brice
- Clay Tanner as Officer
- Helen Gerald as Matron
- Rand Brooks as Trainer
- Wally West as Shelter Man
- #247: The Case of the Carefree Coronary 10/17/65
- Robert Emhardt as Arthur Wendell
- Bruce Bennett as Reve Watson
- Benny Baker as Jerry Ormond
- Whit Bissell as Dennison Groody
- David Lewis as Wallis Lamphier
- Lawrence Montaigne as Dr. Chauncy Hartlund
- Hal Baylor as Jack David
- Joseph Sirola as Dr. Raul Caudere
- Shirley Mitchell as Marilyn David
- Tracy Morgan as Doreen Wilde
- Dan Seymour as Nappy Tyler
- Alexander Lockwood as Deputy
- William Woodson as Dr. Willard Sholby
- Tommy Farrell as TV Reporter
- Jay Weston as News Reporter
- #248: The Case of the Hasty Honeymooner 10/24/65
- Noah Beery as Lucas Tolliver
- K. T. Stevens as Alice Munford
- Hugh Marlowe as Guy Munford
- Cathy Downs as Millicent Barton
- Richard Evans as Larry Dunlap
- Strother Martin as Roy Hutchinson
- Robert Colbert as Carl Snell
- Mark Tapscott as Sgt. Woodward
- Al Checco as Medical Examiner
- William Keene as Judge
- Thom Carney as Salesman
- Lee Miller as Sgt. Brice
- #249: The Case of the 12th Wildcat 10/31/65
- Mona Freeman as Ellen Payne
- Bill Williams as Burt Payne
- Regis Toomey as Andy Grant
- John Conte as Jud Warner
- Karl Swenson as Unk Hazekian
- Robert Quarry as Casey Banks
- Roy Roberts as Harvey Skeen
- Clark Howat as Team Doctor
- Willis Bouchey as Judge
- George Cisar as Bartender
- Ivy Bethune as Mrs. Frye
- Tommy Farrell as Reporter
- Patrick Riley as Police Officer
- Lee Miller as Sgt. Brice
- Sue England as Receptionist
- Howard Wright as Conductor
- Lindon Crow as Assistant Coach
- Joe Scibelli as Himself
- Bill Munson as Himself
- Don Chuy as Himself
- Roman Gabriel as Himself
- Cliff Livingston as Himself
- Marlin McKeever as Himself
- Mel Profit as Ski
- Paul Power as Reporter
- #250: The Case of the Wrathful Wraith 11/7/65
- Jeanne Bal as Rosemary Welch
- Marion Moses as Louise Selff
- Douglas Dick as Ted Harberson
- Lee Farr as Glenn Arcott
- Gene Lyons as Ralph Balfour
- Walter Brooke as Deputy D.A.
- Winifred Coffin as Willa Saint Sutton
- Robert Easton as Ed Allison
- Geraldine Wall as Mrs. Stallman
- Byron Morrow as Second Judge
- Don Dillaway as First Reporter
- Henry Hunter as Doctor
- Frank Biro as First Judge
- Lester Dorr as Photographer
- George Conrad as Second Reporter
- Jack Carol as Third Reporter
- Cecil Elliott as First Woman
- John Hart as Jamison Selff
- Mari Lynn as Second Woman
- #251: The Case of the Runaway Racer 11/14/65
- Hank Brandt as Pete Griston
- Jan Shepard as Marge Leonard
- Anthony Caruso as Harvey Rettig
- Michael Constantine as Pappy Ryan
- Richard Eastham as Oliver Stone
- Gavin MacLeod as Dan Platte
- Robert H. Harris as Marty Webb
- Jimmy Cross as Drunk
- Michael Harris as Blake Leonard
- Paul Winfield as Mitch
- Lawrence Green as Medic
- Seamon Glass as Joe
- #252: The Case of the Silent Six 11/21/65
- Skip Homeier as Sgt. Dave Wolfe
- Dianne Foster as Linda Blakely
- Cyril Delevanti as Craig Jefferson
- Virginia Gregg as Flo Oliver
- David Macklin as Ron Peters
- Hampton Fancher as Hamp Fisher
- Chris Noel as Susan Wolfe
- Tyler MacDuff as Herb Jackson
- Kenneth MacDonald as Judge Carter
- John Heath as Arch
- Walter Mathews as Reporter
- Peter Baron as Monk Coleman
- Lee Miller as Sgt. Brice
- Dale Van Sickle as Joe Oliver
- #253: The Case of the Fugitive Fraulein 11/28/65
- Susanne Cramer as Gerta
- Jeanette Nolan as Emma Ritter
- Gregory Morton as Wolfgang Stromm
- Kevin Hagen as Samuel Carleton
- Ronald Long as Franz Hoffer
- Lilyan Chauvin as Matron
- Wolfe Barzell as Prof. Hans Ritter
- Eileen Baral as Elke
- Barbara Morrison as Woman Magistrate
- Peter Hellman as German Sergeant
- Horst Ebersberg as German Border Guard
- Hans Heyde as Guard at Courtroom
- Charles Hradilac as 1st Associate Magistrate
- George Perina as 2nd Associate Magistrate
- Shony Alex Braun as Violinist
- #254: The Case of the Baffling Bug 12/12/65
- Grant Williams as Dr. Todd Meade
- Dee Hartford as Rhonda Coleridge
- Ben Cooper as Lowell Rupert
- Alizia Gur as Dr. Nina Revelli
- Gilbert Green as Dr. Malcolm Scranton
- Bryon O'Byrne as Horace Lehigh
- Teru Shimada as Dr. Maseo Tachikawa
- S. John Launer as Judge
- Mary Treen as Bess
- Robert Okazaki as Manager
- Nancy Hsueh as Geisha
- #255: The Case of the Golden Girls 12/19/65
- Philip Bourneuf as Victor Montalvo
- Paula Stewart as Beverly Garnett
- Angela Dorian as Debbie Conrad
- Mark Roberts as Irving Florian
- Jean Engstrom as Corinne Richland
- George Neise as Stacey Garnett
- Bruce Glover as Rick Durbin
- John Gallaudet as Judge
- Lee Fredericks as Sgt. Eggers
- Lee Miller as Sgt. Brice
- Charles Stroud as Ad-Lib Man
- Annazette as Teddy Bear #1
- Nancy Czar as Teddy Bear #2
- #256: The Case of the Bogus Buccaneers 1/9/66
- Rhodes Reason as Martin Eldridge
- Patricia Cutts as Ann Eldridge
- Mary Mitchel as Beth Polk
- Richard Jaeckel as Mike Woods
- Kathleen Crowley as Grace Knapp
- John Milford as Clayton Douglas
- Steve Harris as Tony Polk
- Leonard Stone as Harlan Kean
- Michael Fox as Abe Heyman
- Meg Wyllie as Mrs. Webb
- Willis Bouchey as Judge
- Lee Miller as Sgt. Brice
- Len Hendry as Officer #4
- Linda Lee as Girl in Newspaper Office
- John Strong as Buccaneer C
- Jack Swanson as Officer #1
- Hugh Warren as Officer #2
- John Underhill as Officer #3
- Jack Shea as Officer #5
- Patricia Joyce as Receptionist
- #257: The Case of the Midnight Howler 1/16/66
- Lee Patterson as Dan Thorne
- Myrna Fahey as Holly Andrews
- Dan Travanty as Barney Austin
- Alan Baxter as Gorden Sellers
- Cathleen Cordell as Clara Michaels
- Ian Wolfe as Abel Jackson
- Grandon Rhodes as Judge
- Pitt Herbert as Medical Examiner
- Lee Miller as Sgt. Brice
- Marc Desmond as Control Room Man
- Phil Arnold as Mechanic
- #258: The Case of the Vanishing Victim 1/23/66
- Lisa Gaye as Laraine Keely
- Jeanne Cooper as Miriam Fielding
- George Wallace as Stacey Fielding
- Richard Erdman as Jud Bennett
- Russell Arms as Reed Kavanaugh
- John Matthews as F.A.A. Investigator
- S. John Launer as Judge Telford
- John Goddard as Al Dolby
- Carl Prickett as Operations Clerk
- Carol Brewster as Ruth Kavanaugh
- Tom Vize as Process Server
- Lee Miller as Sgt. Brice
- Glen Vernon as McGill
- #259: The Case of the Golfer's Gambit 1/30/66
- Carl Reindel as Danny Bright
- Nancy Kovack as Dina Brandt
- Harry Townes as Erwin Brandt
- Phyllis Hill as Alma Farley
- Dennis Patrick as Chick Farley
- Don Dubbins as Bill Vincent
- Alan Reed, Jr. as Jim Harrell
- Bartlett Robinson as Edward "Pat" Patterson
- Gertrude Flynn as Rosalind - Mrs. Hedrick
- Regina Gleason as Rosalie
- Byron Morrow as Judge
- Bill Brundige as Announcer
- Ted Stanhope as Butler
- Maurice Wells as Golf Official
- Bud Perkins as Photographer
- Maureene Gaffney as Operator-P.A. Voice
- #260: The Case of the Sausalito Sunrise 2/13/66
- Francine York as Bobbi Dane
- Donald Murphy as Francis Clune
- Mark Tapscott as Sgt. Deke Bradley
- Allan Melvin as Bert Kannon
- Peter Mamakos as Olaf Deering
- Elisabeth Fraser as Estelle Paige
- Richard Angarola as Campbell Boyd
- Stanley Clements as Floyd Walters
- Steve Conte as Mac
- Paul Genge as Bud
- Kenneth MacDonald as Judge
- William Erwin as Counterman
- Dirk Evans as Detective
- Bebe Kelly as Nurse
- Linda Burton as Student Nurse
- Charles Cirillo as Waiter
- #261: The Case of the Scarlet Scandal 2/20/66
- Will Hutchins as Donald Hobart
- Gene Evans as Moose Dalton
- Luana Patten as Cynthia Perkins
- Mala Powers as Elaine Bayler
- Lloyd Gough as Richard Bayler
- Clint Sundberg as Aaron Chambers
- Richard Devon as Ed Kesko
- Dee Pollock as Howard Bayler
- Connie Gilchrist as Natasha
- Blair Davies as C. A. Woodmire
- William Keene as Judge Seymour
- Walter Stocker as Charlie Horgan
- Carl Prickett as Mark
- Jack Swanson as 1st Deputy
- Alex Bookston as 1st Reporter
- Paul Sorensen as 2nd Deputy
- Pat McCaffrie as 2nd Reporter
- #262: The Case of the Twice-Told Twist 2/27/66
- Victor Buono as Ben Huggins
- Kevin O'Neal as Lennie Beale
- Scott Graham as Bill Sikes
- Lisa Pera as Donna Reales
- Lisa Seagram as Robin Spring
- Nicolas Surovy as Tick Gleason
- Marc Rambeau as Jody Laird
- Keg Johnson as Lester
- Judson Pratt as Tom Loman
- Beverly Hills as Sue
- Harlan Warde as Sgt. Roddin
- Harry Holcombe as Judge #1
- Byron Morrow as Judge #2
- Helen Kleeb as Welfare Worker
- Will J. White as Deputy D.A.
- Coby Denton as 1st Officer
- Jim Farley as 3rd Officer
- #263: The Case of the Avenging Angel 3/13/66
- Richard Carlson as Clete Hawley
- Sue Ann Langdon as Dorothy (Dottie) Merrill
- Lurene Tuttle as Henry McLeod
- Chick Chandler as Riff Lawler
- Paul Stewart as Cameron Burgess
- Martin Horsey as Sandy Chester
- Patricia Owens as June Burgess
- Sandy Descher as Sherry Lawler
- Douglas Evans as Judge
- Michael McGiveney as Technician
- John KcKee as Policeman
- Mary Statler as Woman
- #264: The Case of the Tsarina's Tiara 3/20/66
- Virginia Field as Madame Sonya Galinova
- Kendall Clark as Gerard Van Ness
- Vivienne Segal as Pauline Thorsen
- Leonid Kinsky as Vyacheslav Gerznov
- Wesley Addy as Joachim DeVry
- Phillip Terry as Rolf Thorsen
- Janet DeGore as Lisabeth Wells
- Carlos Romero as Ricardo Arena
- Barbara Perry as Girl Assistant
- Lew Brown as Officer One
- Lee Miller as Sgt. Brice
- Rudolfo Hoyos as Rizal
- Willis Robards as Alvin McCauley
- Fayrene King as Attendant
- Ray Hemphill as Officer Two
- Kenneth MacDonald as Judge
- Dante Orgolini as Dinaldo
- Larry Barton as Spectator
- Fred Krone as Nils Dorow
- #265: The Case of the Fanciful Frail 3/27/66
- Pippa Scott as Ethel Andrews
- Barry Kelley as Mr. Park Milgrave
- Arch Johnson as Frank Carruthers
- Joan Huntington as Althea Milgrave
- Coleen Gray as Martha Erskine
- Abigail Shelton as Peggy Sutton
- John Rayner as Tierney
- Hunt Powers as Bruce Strickland
- Phil Arthur as Pit Boss
- Henry Hunter as Reverend Alford
- Vera Marshe as Mrs. Alford
- Roy Engel as Detective
- S. John Launer as Judge
- Ray Montgomery as Attendant
- Timothy Blake as Waitress
- Marshall Kent as Ed Thomas
- Seamon Glass as Driver
- Lee Miller as Sgt. Brice
- Mildred Harrison as Chambermaid
- #266: The Case of the Unwelcome Well 4/3/66
- Wendell Corey as Jerome Klee
- Paul Brinegar as Jason Rohan
- Marilyn Erskine as Mirabel Corum
- Les Tremayne as Harry Lannon
- James Best as Allan Winford
- Gloria Talbott as Minna Rohan
- Danielle DeMetz as Monique Martin
- Edmund Hashim as Prince Ben Ali Bhudeem
- William Lanteau as Ross Darley
- Hal Lynch as Matt Rohan
- Gordon Westcourt as Job Rohan
- Martin Braddock as Dick Yates
- Frank Biro as Judge
- Lee Miller as Sgt. Brice
- Robert R. Stephenson as Guard
- #267: The Case of the Dead Ringer 4/17/66
- Indus Arthur as Barbara Kramer
- Arlene Martel as Sandra Dunkel
- Oliver McGowan as Otis Swanson
- Henry Beckman as William March
- Stewart Moss as Dan Swanson
- Maurice Manson as Jess Parkinson
- Tom Palmer as Franklin Bates
- Chet Stratton as Minister
- Alan Fordney as Harley
- Grandon Rhodes as Judge No. 2
- Anthony Jochim as Makeup Man
- Ed Prentis as Judge No. 1
- Roland La Starza as Bouncer
- Mike Miguel De Anda as Mexican Worker
- Alex Bookston as Assistant Manager
- #268: The Case of the Misguided Model 4/24/66
- Mary Ann Mobley as Sharon Carmody
- Paul Lukather as Dennis 'Duke' Maronek
- Anthony Eisley as Rudy Blair
- Rita Lynn as Fern Bronwyn
- Don Dubbins as Deputy D.A. Vincent
- James Griffith as Jake Stearns
- Harry Holcombe as Judge
- Armand Harrison as Ira Dewitt
- Sarah Selby as Woman Clerk
- Isabel Randolph as Madam Rosa Bruening
- Lauren Gilbert as Dave Bronwyn
- Eddie Quillan as Agent
- Lisa Davis as Receptionist
- Lee Miller as Sgt. Brice
- Darlene Enlow as White Snow #1
- Robert Legionaire as Road Block Officer
- Jim Johnson as Policeman #2
- Howard Davis as Policeman #1
- #269: The Case of the Positive Negative 5/1/66
- Brian Donlevy as General Roger Brandon
- Bettye Ackerman as Laura Brandon
- Parley Baer as Frank Cummings
- Dabbs Greer as Bill Cotton
- Simon Scott as Stanley Overton
- Anthony Hayes as Warren Cotton
- Ted de Corsia as George Emory
- John Gallaudet as Judge
- Jim Drum as Photographer
- Tom Allen as Police Officer
- #270: The Case of the Crafty Kidnapper 5/15/66
- Gary Collins as Alex Tanner
- Cloris Leachman as Gloria Shine
- Douglas Henderson as Greg Stanley
- Anne Whitfield as Patricia Tanner
- Mary Foskett as Lola Stanley
- John Lasell as Danny Shine
- Pat Priest as Norma Fenn
- John Holland as Bruno Grant
- William Bramley as Leon Vandenberg
- Walter Burke as Man
- Willis Bouchey as Judge
- Patricia Joyce as Receptionist
- Lee Miller as Sgt. Brice
- #271: The Case of the Final Fade-Out 5/22/66
- James Stacy as Barry Conrad
- Estelle Winwood as Winifred Glover
- Jackie Coogan as Pete Desmond
- Denver Pyle as Jackson Sidemark
- Dick Clark as Leif Early
- Gerald Mohr as Andy Rubin
- Marlyn Mason as Erna Landry
- Kenneth MacDonald as Judge One
- William Tannen as Studio Guard
- Margaret Shinn as Starlet #1
- Linda Burton as Starlet #2
- Maureen Crow as Adlib
- Louis Elias as Stunt Man No. 1
- Saul Gorss as Stunt Man No. 2
- Lee Miller as Sgt. Brice