James Warwick

as Scott

as Maitre d'

as Log of HMS Challenger (voice)

as Severn Driscoll

as Prince Namor/Professor (voice)

as Century (voice)

as Xanthus (voice)

as Sam Jaggers/Salesman/Swat Cop (voice)

as Matthew Duffin

as Van De Merve

as Lord Clive Ludlow

as Geoffrey Silberston

as Paul Lafferty

as Tommy

as Tommy Beresford

as Scott

as Paul Greenfield

as Jack Lefevre

as Michael Gaffikin

as Michael Gaffikin

as Jimmy Thesiger

as Bobby Jones

as Dr Scott

as Edmund Callon

as Reporter

as Scott