Harold Conway

as Eugene Dooman - US Embassy Counselor (uncredited)

as Captain John Campbell

as Salvatore

as Assassinated Ambassador (uncredited)

as Dr. Ben Cathie

as Henri Berylner

as Smith

as K. Robert

as Minister

as Johnson

as Scientist in Seahawk

as Federal Missile Base Commander

as Washington Broadcast Station Chief

as Foreign presiding judge

as Dr. Immerman

as Snider

as Major Johnson

as J. Thompson

as (uncredited)

as Dr. De Gracia

as Captain

as Hammett

as Eri's husband