Question: This voice actor stared as Hanna-Barbera's cartoon character Space Ghost in its American adult animated parody talk show?
Sentence (from "Sealab 2021"): "Sealab 2021" is a spin-off of "Space Ghost Coast to Coast", and is one of the four original Williams Street series that premiered in 2000 before Adult Swim officially launched, the others being "Aqua Teen Hunger Force", "The Brak Show" and "Harvey Birdman, Attorney at Law".
Relevant evidence: No