Daniel Michael DeVito Jr. is an American actor and filmmaker. He gained prominence for his portrayal of the taxi dispatcher Louie De Palma in the television series Taxi (1978–1983), which won him a Golden Globe Award and an Emmy Award. He plays Frank Reynolds on the FXX sitcom It's Always Sunny in Philadelphia (2005–present).

Taxi is an American television sitcom that originally aired on ABC from September 12, 1978, to May 6, 1982, and on NBC from September 30, 1982, to June 15, 1983. It focuses on the everyday lives of a handful of New York City taxi drivers and their abusive dispatcher. For most of the run of the show, the ensemble cast consisted of taxi drivers Alex Reiger, Bobby Wheeler, Elaine Nardo, Tony Banta, and "Reverend" Jim Ignatowski, along with dispatcher Louie De Palma and mechanic Latka Gravas. Taxi was produced by the John Charles Walters Company, in association with Paramount Network Television, and was created by James L. Brooks, Stan Daniels, David Davis, and Ed. Weinberger, all of whom were brought on board after working on The Mary Tyler Moore Show.