Cast

Season One

Starring:
Steven Hill as Dan Briggs

Also Starring:
Barbara Bain as Cinnamon Carter
Greg Morris as Barney Collier
Peter Lupus as Willy Armitage

Special Appearances by:
Martin Landau as Rollin Hand

Season Two

Starring:
Peter Graves as Jim Phelps
Martin Landau as Rollin Hand

Also Starring:
Barbara Bain as Cinnamon Carter
Greg Morris as Barney Collier
Peter Lupus as Willy Armitage

Season Three

Starring:
Peter Graves as Jim Phelps
Martin Landau as Rollin Hand

Also Starring:
Barbara Bain as Cinnamon Carter
Greg Morris as Barney Collier
Peter Lupus as Willy Armitage

Season Four

Starring:
Peter Graves as Jim Phelps
Leonard Nimoy as Paris

Also Starring:
Greg Morris as Barney Collier
Peter Lupus as Willy Armitage

Season Five

Starring:
Peter Graves as Jim Phelps
Leonard Nimoy as Paris

Also Starring:
Lesley Warren as Dana Lambert
Greg Morris as Barney Collier
Peter Lupus as Willy Armitage
Sam Elliott as Dr. Doug Robert aka Lang

Season Six

Starring:
Peter Graves as Jim Phelps
Greg Morris as Barney Collier

Also Starring:
Lynda Day George as Casey
Peter Lupus as Willy Armitage

Season Seven

Starring:
Peter Graves as Jim Phelps
Greg Morris as Barney Collier

Also Starring:
Lynda Day George as Casey
Peter Lupus as Willy Armitage