Philip Toubus (born 1947 in Winnetka, Illinois), better known as Paul Thomas, is an American pornographic actor and director. He is a member of the AVN Hall of Fame and the XRCO Hall of Fame. He is unrelated to Paul Thomas Anderson, who directed Boogie Nights, a mainstream film portraying the porn industry.

Philip Toubus was born in Winnetka, Illinois to a wealthy family. He is the nephew of Sara Lee Lubin. He attended the University of Wisconsin-Madison but turned to acting. He acted in Broadway theatre playing a starring role in Hair. He also played Peter in the 1973 film version of Jesus Christ Superstar. Toubus signed with the William Morris Agency and went to Hollywood where he played parts in television shows.

Toubus started working in pornography in 1974. He met the pornographic film makers, the Mitchell Brothers, while playing in a musical in San Francisco. He performed in several film "loops" for them and, in 1976, he appeared in his first porn feature The Autobiography of a Flea.