Kubbe Deneyi

Benson, Kubbe Deneyi'nin tarihi konusunda haklı olduğunu kanıtlamak ister.

David Ogden Stiers

Mr. Maellard (voice)

Roger Craig Smith

Dr. Dome / Fake Rigby / Scientist #2 (voice)

Andres Salaff

Fake Mordecai / Fake Muscle Man / Ventriloquist (voice)

Ali Hillis

Fake Hi Five Ghost / Fake Audrey / Scientist #3 (voice)