For many years, Bellamy was a staple on MTV, a VJ and the host of several MTV programs including MTV Jamz and MTV Beach House.[11] He went on to star in a number of movies, including Fled, Love Jones, The Brothers, How to Be a Player, Getting Played and Any Given Sunday. He also appeared on two episodes of the TV show Kenan and Kel. Additionally, he voiced Skeeter on the Nickelodeon television show Cousin Skeeter.[11]
In 2002, Bellamy had a co-starring role in the Fox Network television show Fastlane alongside Peter Facinelli and Tiffani Thiessen. He also appeared frequently as a "roundtable" guest on the late night E! talk show Chelsea Lately. Bellamy hosted seasons 5 and 6 of NBC's Last Comic Standing reality show (2007 and 2008). In 2014, he had a recurring role as Councilman Powell on the TV Land original series Hot in Cleveland.[12] He voiced Marcus Hill, a playable character in the 2005 updated version of the NARC video game.[13]
In 2016, Bellamy played FBI Agent Sanders, the partner of Dolph Lundgren's character, in Kindergarten Cop 2.[14]
Bellamy hosts Bill Bellamy's Who's Got Jokes? on TV One. The show is in its fourth season; he is an executive producer for it. In 2020, he starred in the Netflix miniseries Self Made.[6][15]