Gary Lockwood
Lt. William 'Bill' Rice (29 eps)
Robert Vaughn
Captain Ray Rambridge (29 eps)
Harold Gould
Lt. Col. Raleigh Wade (3 eps)
John Milford
Sgt. Ben Kagey (2 eps)
Sandra Grant
Margo (2 eps)
Kenneth Tobey
Sergeant Baker (1 eps)
Sharon Farrell
Pam Canford (1 eps)
Don Marshall
Pvt. Ernest Cameron (1 eps)
John Doucette
Sgt. Clintock (1 eps)
Jeremy Slate
Lt. Virgil Scott Boxer (1 eps)
Dennis Hopper
Cpl. Peter Devlin (1 eps)
Majel Barrett
Ruth Donaldson (1 eps)
Conrad Nagel
Admiral Terence Havener (1 eps)
Danny Lockin
Bellhop (1 eps)
Nichelle Nichols
Norma Bartlett (1 eps)
Woody Strode
Sgt. Logan Holt (1 eps)
Madlyn Rhue
Jackie Madian (1 eps)
John Hart
Capt. Adam Quincy (1 eps)
Rita Lynn
Social Worker (1 eps)
James Drake
Intern (1 eps)
Fletcher Fist
M.P. Officer (1 eps)
Neva Patterson
Vera Delwyn (1 eps)
Walter Koenig
Sgt. John Delwyn (1 eps)
Hal Taggart
Observer at Rally (uncredited) (1 eps)