Teenage Mutant Ninja Turtles — IDW Publishing
Issue: #56 RI
Last valuation update: 2026-02-13
The Turtles return to the Technodrome to monitor the revival of the Utroms. They are surprised to meet a new mutant there— Leatherhead! Will the mysterious mutant be friend or foe?
Creators: Bobby Curnow, Shawn Lee, Pablo Tunica, Mateus Santolouco, Kevin Eastman, Ronda Pattison, Tom Waltz
Characters: Donatello, Leonardo, Michelangelo, Raphael, Sergeant Granitor, Harold Lillja, Metal Head, Ch'rell, Jennika, Leatherhead, Kitsune, Traag, Fugitoid, Krang, Master Splinter, The Rat King
Story arcs: Leatherhead