Main characters, drawn by Stephen Hillenburg

Notes:

The original sketch of the main characters, drawn by Stephen Hillenburg in 1997. At the time, SpongeBob's name was actually "SpongeBoy," and Mr. Krabs and Pearl's last name was "Crabs." A few of the characters hadn't been created yet. The colors and names were added in the June 2003 issue of Nickelodeon Magazine.