Dr. Cooper is a character from Phineas and Ferb and is a secondary antagonist in Knights of the Multiverse Season 1. He's a member of the evil organization L.O.V.E.M.U.F.F.I.N. and is a failed clone of Dr. Cooper. He's also the creator and main operator of Balatack.
Season 1 Edit
While the Dabude battle platforms were still under construction, Shell got the brilliant idea to kidnap the Crystal Knights' commanding officer Ryoma Nagare to insure their success. So, using a tracking device placed on Ryoma in the previous episode, he sent Balatack to "retrieve" him.
Abilities & Equipment Edit
Like Dr. Black and Dr. White, it is possible that Shell's blue sweat shirt was just Cooper again with a miscolored shirt. But, to spice things up, the two are portrayed as separate characters.