Mr. fantastic / Reed Richards: Alex Hyde-White

Human Torch / Jonathan “Johnny” Storm: Jay Underwood

Invisible Girl / Susan “Sue” Storm: Rebecca Staab

Baron Michael Karsten: Monte Blue

The Thing: Carl Ciarfarlio

Ben Grimm: Michael Bailey Smith

Mrs. storm: Annie Gagen

Dr. Doom/Victor von Doom: Joseph Culp

Henchman Packard: George Shelley

Maroni : Lon Chaney Jr

Young Susan “Sue” Storm: Mercedes McNab

Young Jonathan “Johnny” Storm: Phillip Van Dyke