Barry Mickelthwaite is Phil Collins' manager in the game. It is implied in one mission that he had a sexual experience with Reni in Monaco after becoming heavily drunk of alcohol. He also owes Giorgio Forelli (who is also mentioned in Vice City) money, which puts Phil's life in danger. Barry has an accent which suggests he is from Birmingham. As far as managers go, he is of poor quality, putting Phil's life on the line just so he doesn't end up with a concrete overcoat. Phil is very fortunate to have Victor become their personal bodyguard as Vic manages to save Phil many times throughout his stay in Vice City. After Reni's fourth sex change he/she tells Barry he should have breast implants and after the mission "In the Air Tonight", Phil goes on to say Barry should have taken Reni's advice.
Coincidentally or not, the name of the character bears a bizarre resemblance to an Australian soccer player who played in Romania, Michael Thwaite.
Barry is voiced by Timothy Spall.