Charles Fleischer (born August 27, 1950) is an American actor, stand-up comedian, musician, and writer, best known for his recurring role as Carvelli in Welcome Back, Kotter, and for appearing in films such as Roger Rabbit and Benny the Cab in Who Framed Roger Rabbit, A Nightmare on Elm Street, The Polar Express, Rango, Chip 'n Dale: Rescue Rangers, and We're Back!

Fleischer's first Laugh-In appearance was on January 15, 1973, where he played his homemade musical instruments made from lead pipe and shower wands.

[5] He performed the role of a televangelist on "What God Wants, Part II", on Roger Waters' 1992 album Amused to Death.

He performed as a guest on harmonica with the group Blues Traveler at the Wiltern Theater in Los Angeles on November 22, 1995 [citation needed] and from December 10 to 15, 2002 at the Improvisational theatre of Connecticut Avenue.

Charles Fleischer was inside Tropicana Las Vegas, giving an improvised comedy along with Bob Golub and Nick Aragon at the Laugh Factory from January 17 to 20, 2019.