Crazy Mohan (born 16 October 1949 as Mohan Rangachari) is a Tamil comedy actor, script writer and playwright. An engineer by profession, Mohan started writing plays and dramas for stage and established his own drama troupe called Crazy Creations in 1979. In addition to dramas and tele-serials, he has worked as a dialogue writer on a number of comedy films. He has written over 30 plays, worked on over 40 films and played cameo roles in each of these films, and written 100 short stories.