Timothy is a character who appears in the Teenage Mutant Ninja Turtles: Amazing Adventures comics.
This version of Timothy is branched off from his previous version in the 2012 TV series. His history before the events of Amazing Adventures is the same as that of his animated version.
History[]
Robotanimals! issue 2[]
The Turtles return to the lair after their encounter with Baxter Stockman and the roboticized Mighty Mutanimals. They gather in Donatello's lair to discuss the situation and Mutagen Man can be seen in the background.
Epilogue: The Terror of the Kraang[]
When the Fear Gas developed by Jonathan Crane especially to affect The Kraang is released by Batman and Raphael, among the hallucinations the Kraang see is Mutagen Man.