Nosferatu hides in the cooler during the night shift and is the boss there. He approves SpongeBob to be a fry cook for the night shift by drinking his blood with a straw.
"A Place for Pets"
Nosferatu briefly appears during the song "Pets Are People Too" when he is gifted a sea bat.
Role in Video Games
SpongeBob's Truth or Square
He appears in the "Buns-a-Blazin'" mini-game in the DS version.
Contrary to popular opinion, the word 'nosferatu' does not mean 'vampire', 'undead', or anything similar. The term originally came from the old Slavonic word 'nosufur-atu', which itself was derived from the Greek 'nosophoros'. 'Nosophoros', in the original Greek, stands for 'plague carrier'.