John Carmack

as Self

John Romero

as Self

Tom Hall

as Self

Adrian Carmack

as Self

Sandy Petersen

as Self

American McGee

as Self

Graeme Devine

as Self

Jennell Jaquays

as Self

Dave Taylor

as Self

David Kushner

as Self

Tim Willits

as Self

Cliff Bleszinski

as Self

Warren Spector

as Self