Peter Fonda as Chuck Browning

Blythe Danner as Tracy Ballard

Arthur Hill as Dr. Duffy

Yul Brynner as The Gunslinger

John P. Ryan as Dr. Mort Schneider

Stuart Margolin as Harry Croft

Allen Ludden as Game Show Host

Robert Cornthwaite as Mr. Reed

Angela Greene as Mrs. Reed

Darrell Larson as Eric

Nancy Bell as Erica

Jan Cobler as Hostess

John Fujioka as Mr. Takaguchi

Dana Lee as Mr. Takaguchi's Aide

Alex Rodine as KGB Man

Judson Pratt as Bartender

Andrew Masset as Male Robot

James M. Connor as Robot Clark

Jim Antonio as Ron Thurlow

Cathryn Hartt as Secretary

Charles Krohn as Arthur Holcombe

Ed Geldart as Frenchy LaPorte

Leoda Richards as Woman in TV Show Audience

Burt Conroy as Mr. Karnovski

Howard Finch as Reporter

Jim Everhart as Shorty

Barry Gremillion as Page

Barry Gilmore as Guard

Hirsh Scholl as The Arab