David McCallum

as Chief Medical Examiner Dr. Donald Horatio "Ducky" Mallard

as Steel

as Illya Kuryakin

as Alex Vesey

as C.A.R.

as Alan Breck Stewart

as Merlin

as Dr. Daniel Westin

as Flt. Lt. Simon Carter

as Prof. Peter Plum

as Eugene Wrayburn

as Bernard Dimes

as John Grey