Rasputin the Mad Frog is one of the Punk Frogs. He is named after one of Shredder's favorite historical figures, Rasputin the Mad Monk. He was created in the same manner as his three brothers, Attila the Frog, Genghis Frog & Napoleon Bonafrog, when Mutagen sent by Krang landed near four frogs in a Florida swamp. He was a humble, naive tadpole, until he was accidentally mutated, then tricked by The Shredder to join his cohorts for evil purposes. When he saw Shredder's evil ways, Rasputin realized that the Turtles were his true friends. He first appeared in the 1987 series, in the episode Invasion of the Punk Frogs. He makes a brief cameo in the first episode of Mutant Turtles: Chōjin Densetsu Hen.
- Despite what his name would imply, Rasputin hasn't shown any signs of being 'mad' in his appearances. Whether or not he could survive insanely life-threatening situations remains to be seen.
- Rasputin, alongside Attila, did not officially receive toys based on their characters.