In the episode Moby Jerk, the voice actors of the captain of the ship and the captains assistant are the same draft voices of Mr Krabs and spongebob squarepants respectively. Also the ship is called. Crusty Scab - similar to the Krusty Crab from the spongebob squarepants cartoon. Obviously these are the same voice actors from this episode and the spongebob squarepants cartoons. From a nostalgic perspective, this episode of johnny bravo could indeed be the very first recorded versions of Mr Krabs and Spongebob.