|Enemies||Izzy and Mal|
|Voiced by||Adam Katz|
Known among the contestants as a "floater", Test Tube never made any plot moves, but however, she made so called "strategic moves", by becoming the swing vote several times and controlling the elimination, mainly those where Mike and Sierra were eliminated.
She's the only character to have changed player 4 times: Animekid, Berryleaf, Cabbage, and at the end The Not so Happy User.
Test Tube is a science fanatic, and devotes her life to science and education. She is the most intelligent person in the game, but very bad at physical challenges. Her knowledge can come off as obnoxious and can irritate the people around her.
|Eliminated from Total Drama Sky Adventures|
|Sneaky Swordfishes teammates|
|Cody | Fan | Gwen | Mike | Paintbrush | Sierra | Test Tube | Topher|