Richard Diamond, Private Detective

David Janssen

Richard Diamond / Chuck Garrett

77 episodes

Richard Devon

Sgt. Alden

77 episodes

Russ Conway

Alec Bruce

15 episodes

Regis Toomey

Lt. Dennis McGough

13 episodes

Peter Leeds

Waldo Lattimer

4 episodes

Bartlett Robinson

Paul Manners

4 episodes

Robert Quarry

Charlie Wendell

3 episodes

Peggy Maley

Sally

3 episodes

Michael Fox

Brother Joshua

3 episodes

Patricia Donahue

Bunny

3 episodes

Ross Elliott

Norman Dewitt

3 episodes

Bill Erwin

Sgt. Riker

3 episodes

Richard Reeves

Willie Gibson

3 episodes

Herb Vigran

Johnson

2 episodes

Jeanette Nolan

Dr. Tesla

2 episodes

William Schallert

Charlie Kane

2 episodes

Nestor Paiva

Emilio Tomas

2 episodes

Hillary Brooke

Winifred O'Hara

2 episodes

Joe Conley

Bartender

2 episodes

Peter Hansen

Tim Wilson

2 episodes

Christopher Dark

Mickey Farmer

2 episodes

Lawrence Dobkin

Joey Kane

2 episodes

Frank Albertson

Gerald Clayton

2 episodes

Gordon Jones

Joel Finlay

2 episodes