• 
  Philip Abbott

  Arthur Ward
• 
  Robert Doyle

  Leo Adamson
• 
  Anthony Eisley

  SAC Chet Randolph
• 
  Dana Elcar

  Howard Bergdahl
• 
  Ross Hagen

  Joseph Schaffler
• 
  Patricia Harty

  Charlene Miller
• 
  Ed Prentiss

  Mitchell Owen
• 
  Charles Randall

  William Needles

• 
  William Reynolds

  Special Agent Tom Colby
• 
  Andy Romano

  Chico Jordan
• 
  Robert Walker Jr.

  Paul Donald Thorpe (as Robert Walker)
• 
  Barry Williams

  Boy
• 
  Robert Yuro

  Jack Dane
• 
  Efrem Zimbalist Jr.

  Inspector Lewis Erskine
• 
  Bill Zuckert

  Frank Poland