Ultimate Fighting champ Jackson was recently unveiled as the new Sergeant Bosco 'B.A.' Baracus in Joe Carnahan's big screen adaptation of the 1980s TV hit.
He'll join Liam Neeson, Bradley Cooper and Jessica Biel in the cast.
Mr T - real name Laurence Tureaud - hints he would have liked to have reprised the role he made famous, but insists he's not bitter movie bosses opted for someone else.
He tells the New York Daily News, "As one tough man to another, I respect him. I'm not mad at Quentin Jackson and I'm not mad at (A-Team creator) Steve Cannell.
"There's no hard feelings. I'm grateful that I had the time on the show back in the '80s. When the movie comes out, I'm going to go see it and I'm going to enjoy it."