Peter Graves
Jim Phelps (22 eps)
Greg Morris
Barney Collier (22 eps)
Peter Lupus
Willy Armitage (22 eps)
Bob Johnson
Man On Tape (voice) (22 eps)
Lynda Day George
Dana Lambert (22 eps)
Anne Francine
Maude Brophy (1 eps)
Lou Antonio
Robert Siomney (1 eps)
Jack Cassidy
Orin Kerr (1 eps)
William Windom
Deputy Premier Milos Pavel (1 eps)
Bert Freed
Leon Chandler (1 eps)
Joe Maross
Sheriff Brad Owens (1 eps)
Robert Ellenstein
Dr. M. Vazan (1 eps)
William Shatner
Joseph Conrad (1 eps)
Michael Baseleon
Frank Stevens (1 eps)
Jon Shank
Frank Colby (uncredited) (1 eps)
Susan Howard
Nora Dawson (1 eps)