Which American stand-up comedian starred in  It's Only a Theory
Reginald D. Hunter Reginald Darnell Hunter (born 26 March 1969) is an American stand-up comedian based in the United Kingdom.
Adam Carolla Adam Carolla (born May 27, 1964) is an American comedian, radio personality, television host, actor, podcaster, and director. He hosts "The Adam Carolla Show", a talk show distributed as a podcast which set the record as the "most downloaded podcast" as judged by Guinness World Records in 2011.