Jimmy Castor is an American R&B and funk musician from New York City. In the late 1950s, he worked with the doo-wop group Frankie Lymon and the Teenagers. As leader of The Jimmy Castor Bunch in the 1970s, and also as a solo artist, he has released several successful albums and singles, some of which have been heavily sampled in films and in hip-hop. In particular, the sax hook and groove from 'It's Just Begun' and the spoken work intro and groove from 'Troglodyte' have been sampled extensively.