• 
  Robert Cummings

  Dr. Robert McDonald (18 episodes, 1964-1965)
• 
  Cliff Osmond

  Fat Sam (1 episode, 1965)
• 
  Eddie Foy Jr.

  Harry Moffatt (1 episode, 1965)
• 
  Jackie Joseph

  Mary Jo Franklin (1 episode, 1964)
• 
  Jonathan Hole

  Mr. Whitson (1 episode, 1964)
• 
  O.B. Clarence

  Dr. Robert McDonald (18 episodes, 1964-1965)
• 
  Kip King

  Bellboy (1 episode, 1964)
• 
  Nestor Paiva

  Patrone (1 episode, 1965)

• 
  Ned Glass

  Harry Barnes (1 episode, 1965)
• 
  Julie Newmar

  Rhoda Miller (18 episodes, 1964-1965)
• 
  Gene Raymond

  Walter J. Armbruster (1 episode, 1964)
• 
  Marianne Stewart

  Jewelry Saleswoman (1 episode, 1964)
• 
  Jack Mullaney

  Peter Robinson (3 episodes, 1964)
• 
  Doris Dowling

  Irene Adams (3 episodes, 1964)
• 
  Linda Gaye Scott

  Monica Bird (1 episode, 1965)

• 
  Robert P. Lieb

  Dr. Rochlin (1 episode, 1964)
• 
  William Allyn

  Waldo (1 episode, 1964)
• 
  Jackie Russell

  Marianne (1 episode, 1964)
• 
  Charles Ruggles

  Jonas Clay (1 episode, 1964)
• 
  Bartlett Robinson

  Howard Vines (1 episode, 1964)
• 
  Hope Summers

  Edwina (1 episode, 1964)
• 
  Les Tremayne

  General Alfred Cartwright  (2 episodes, 1964-1965)
• 
  Joseph V. Perry

  Policeman (1 episode, 1965)
• 
  Jan Burrell

  Miss Thomas (1 episode, 1964)
• 
  Karl Lukas

  Harry (1 episode, 1965)
• 
  Edward Colmans

  Mr. Sloan (1 episode, 1965)
• 
  Marjorie Bennett

  Mrs. Carter (1 episode, 1964)
• 
  Tom Tully

  Det. Faber (1 episode, 1964)
• 
  Ben Wright

  Dealer (1 episode, 1965)
• 
  Parley Baer

  Judge (1 episode, 1965)
• 
  Nora Marlowe

  Mrs. Moffatt  (3 episodes, 1965)
• 
  Marian Collier

  Madelyn Sawyer (1 episode, 1964)
• 
  Roger C. Carmel

  Lazlo  (2 episodes, 1964-1965)