Frank Harper

as Mr. Berg

as (archive footage)

as Mike

as (archive footage)

as Professor Lasky (3 episodes)

as Doc Brady

as Mr. Wells

as (archive footage)

as Jay (archive footage)

as Nick

as David (as Chip Albers)

as Rick

as Jack (2 episodes)

as Nick (archive footage)

as Tom (1 episode)

as Michael Finnegan

as Andy Baxter

as Shane

as David Brooks

as Tyler

as Rick Sterns (as Chip Albers)

as Robert Lydekker (as Chip Albers)

as Nick (1 episode), as Bob (1 episode), as Jason (1 episode)

as Danny