Jonathan Finney (The Next Chapter)

Jack Finney, also known as Man Ray or Ray Fillet, is an anthropomorphic manta ray. He holds the safety of the environment and its creatures as a top priority. Although he prefers to stay in the water, Man Ray can live on land for a limited period of time before having to return to some kind of water source. Although he has been known to use a speargun as a weapon, he usually prefers hand-to-hand combat.

History
Man Ray was once Jack Finney, a man who worked at the Burroughs Aquarium in New Jersey, and showed a special interest in the manta ray. One night after a chance encounter with the Turtles, he closed up for the night so he might finally get some "real work" done, but not before saying goodnight to his favorite resident. While investigating a local sewer pipe that he suspected was being used for illegal dumping into the ocean, Ray was caught up by an overflow and carried out into sea. Little did he know that the green liquid he found while investigating the pipe was Mutagen that had been accidentally spilled into the sewer by Bebop and Rocksteady.

After going into hiding, he was rescued by Baxter Stockman and raised as a Foot Clan member. After the Turtles defeated the Shredder, Ray Fillet and the other mutants went to live with April O'Neil in her studio apartment.