Not to be confused with the character from the SpongeBob SquarePants Movie
Dennis Lobster is a light brown fish with glasses. He went to Elementary school with SpongeBob, and asked him to rub his scalp. He appeared on episodes: One Krab's Trash, The Sponge Who Could Fly, Sing a Song of Patrick, The Two Faces of Squidward, The Inmates of Summer, Krabs vs. Plankton, The Krabby Kronicle, Goo Goo Gas, The SpongeBob SquarePants Movie.
- In The Sponge Who Could Fly he appears to be light brown in color but in all of the other episodes he appears green.
- He looks much older than SpongeBob but apparently they used to be classmates.
- This is a different Dennis and not Dennis (The Hitman).
- He serves Master Plankton as hypnotized policeman.
- He is in prison for an unknown reason with SpongeBob. SpongeBob, however, does not seem to address him when he meets him.
- In The Krabby Kronicle, he was a member of the science community.
- Dennis is sometimes portrayed as an old man in some episodes. That may be another character though.
- It is shown that he is the boss at the Barg'n Mart on the episode Slide Whistle Stooges.
- He was one of the Mild Ones in Born To Be Wild