Martin Milton, aka "Sir Malachi, the sparrow wizard", is a mutant sparrow that appeared in the second season of the 2012 TV series.
Martin Milton used to be obsessed with the role-playing game known as Mazes & Mutants, and played it for every hour of every day. All that changed the day he was feeding the birds on his roof and a mutagen canister fell from the sky right on Martin, turning him into an anthropomorphic sparrow. He now answers to the name of "Sir Malachi, the sparrow wizard", wears medieval-style hood, tunic, cape and carries a wand with an egg-shaped decoration on top. Martin doesn't have his left leg and his new peg leg is actually a branch, which still have some leaves on it.
In Mazes & Mutants he trapped the turtles in an illusion of a maze, so he could play the M&M with them. At the end he told the turtles about his true identity and revealed that he wasn't a bad guy, just lonely. The turtles forgave him and he said goodbye to his new friends before leaving.
- The creators have revealed that Malachi's character was inspired by the role-playing games that they all enjoy and they very much wanted a "wizard" character in the TMNT franchise.
- According to the concept art shown in the Comic-Con 2013 at least one of Sir Malachi's slices of bread has a face on it.
- Even as a human he was missing a leg and had a prosthesis to replace it.
- He's one of the few mutants to take his mutation completely in stride, and in fact enjoy it over his original form.