Michael Ellis

 was a House Guest in Big Brother 5. He received 3 out of 7 Jury votes as was named the runner-up. He received $50,000 for spending 82 days inside the Big Brother House.

Cowboy was one of the candidates eligible to be voted into Big Brother All Stars. Cowboy however was not chosen to re-enter the game. Later he appeared in Big Brother 11 as the candidate for the Off-Beat. Once again, Cowboy did not re-enter the game as all the members off the Off-Beat clique dropped from the Endurance challenge.