Katrina "Trina" Tentacles is Squidward's rude and bossy cousin, who plays the clarinet very well. She also yells alot, and her parents say "She's too much for words". She was once babysat by SpongeBob and Sandy, who didn't know what to do with her. She also brags about her age, as often when someone rudely asks her how old she is she replies "'I'm 8 in a half, and you aren't". She currently attends Bikini Bottom Elementary School, and gets bad report cards there. (Thus leading in her may not passing third grade).