Dr Benton Quest is a famous world renowed scientist who lives on a priviate island off the coast of florida with his son Jonny and his adoptive son Hadji. Race Bannon also lives on the island as well as Bandit ( dog ). He has many enemys though. He was voiced by John Stephenson in 6 episodes but many people said he sounded almost exactly like Mike Road who voiced Race Bannon. so Don Messick took the role as Dr Benton Quest for the next 20 episodes.