Derek de Lint

as Theo Van Sertema

as Stephen Brauer

as Rolan Antonov

as Gerben Kuipers

as Dr. Mandrakis

as Jan Clopatz

as Manfredi Ferrer

as Gerard Cuvee

as Franz

as High Centurion Sulat Ray

as Eibert

as Johan Kievit

as Professor Holzmann

as Alex

as Victor DuBois

as Pieter van Buren

as Willem Barentsz

as Twan Benschop

as Old Thom

as Dokter Rossi

as Anton Steenwijk

as Dokter Rossi

as Derek Rayne, Ph.D.

as Dr. Gerard Bernard

as Opa Ber

as King of Dagonaut

as Peter Fontein

as Mr. Bancroft

as Georges van Baaren

as Bob Hooke

as Sinterklaas / Santa Claus

as Terence Hill

as Abelard

as Allessandro Censi

as Karl Jorgensen

as Head Gray Man

as Dokter Rossi

as Chris Brine

as Dr. Thost

as Baron van Westerholt

as Self - Actor

as Dr. Estes

as Karel

as Man

as Ritsaart

as William van Bronkhorst

as Philippe / Marcel's son-Simone's husband

as Lothar de la Rey

as Jack de Graaf

as Erik

as Casper

as Bertus

as Vader Richard

as Tramp

as Father Jan

as Karel van Laar

as Dr. Thost

as Gus Morgan

as Inni Wintrop

as Alex

as Abramov

as Roberto Rannaldini

as Paul de Wit / Nathan Blum

as Self

as Alex

as Theo van Delft

as Lieutenant Steiner

as Charles Deveraux

as Peter

as Vlad

as Peter Koudbier

as Mark

as Anton Zwager

as Anatole Deibler

as Levi

as Grandpa

as Lothar de la Rey

as Abramov

as Lothar de la Rey