Irma Langenstein is a Teenage Mutant Ninja Turtles character.
In the 1987—1996 animated series, Irma works as secretary for Channel 6 and is also a friend of April O'Neil. Throughout season 2, she also befriends the Ninja Turtles.
In the 2012—2017 animated series, what first appears to be a high school student and friend of April O'Neil, is later revealed to be be Kraang Subprime, Kraang Prime 's right hand, using in a robot disguised as an Earth schoolgirl. Kraang Subprime's mission is to spy on humankind.
In the Archie TMNT Adventures comics and Mutant Turtles Gaiden as well as the IDW Comics, Irma works for Channel 6, as a secretary respective news reporter.