James Warwick

as Scott

as Maitre d'

as Log of HMS Challenger (voice)

as Severn Driscoll

as Century (voice)

as Prince Namor/Professor (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 Jack Lefevre

as Michael Gaffikin

as Michael Gaffikin

as Jimmy Thesiger

as Bobby Jones

as Dr Scott

as Hugo de Bathe

as Edmund Callon

as Scott