Mark Heap

as Mr Oom Boom Boom

as Mr. Thomas (voice)

as Johnson

as Sir Quentin Strillers

as Graham

as Pick up Driver

as Simon Tarrington

as Tertius

as M.C.

as William

as John Turpin

as Superintendent Bob Weekes

as Peter Cole

as Albert Greaves

as Jim

as Phillip

as Thomas Brown

as Alan Statham

as Various

as Brian Topp

as Simon Hottrin / Dr. Zeus Spofforth / Various Characters