FrankBob

Frank Bob was SpongeBob's cousin who was in a coma and was on life support that ran on batteries. He died because of SpongeBob, who "needed" the batteries and took them, which killed him! After SpongeBob was injured while attempting the Deep Sea Dive in the Fry Cook Games, he ended up in the hospital next to the deceased FrankBob, where he too died.

In the cartoon that was parodying him, FrankBob is just SpongeBob in a Frankenstein's monster costume.