Charles is a wealthy man. He won the Bikini Bottom Pet Show five times in a row until SpongeBob won the competition in the episode, "Grooming Gary." Charles tells SpongeBob the only way to prove your pet's beauty is to win the pet contest.
Charles has a top hat, a tuxedo, and a parasol.
"Come on now, Foof."
"Does anyone speak Snail?"
"At least I know you wouldn't act like any of these heathens, right, Foofie?"