Stuart Whitman

~ as ~

Captain Welch

Persis Khambatta

~ as ~

Sylvia Kruger

Angus Scrimm

~ as ~

Soviet Destroyer Captain

Leon Askin

~ as ~

Martin Beck

~ as ~

C.I.A. Man - Berlin

Emile Beaucard

~ as ~

Soviet Sub Exec

Paul Mantee

~ as ~

Paul Comi

~ as ~

b.g. miller

~ as ~

Robert Clarke

~ as ~