Mel Gibson:Martin Riggs;Danny Glover:Roger Murtaugh;Joe Pesci:Leo Getz;Rene Russo:Lorna Cole;Jet Li:Wah Sing Ku;Darlene Love:Trish Murtaugh;Traci Wolfe:Rianne Murtaugh;Kim Chan:Benny Chan;Steve Kahan:Captain Ed Murphy;Damon Hines:Nick Murtaugh;Ebonie Smith:Carrie Murtaugh;Michael Chow:Benny's Assistant;Danny Arroyo:Gomez;Elizabeth Sung:Hong's Wife;Chris Rock:Det.Lee Butters;Bob Jennings:Sheriff #1;Jeanne Chinn:Ping's Mother;Conan Lee:Four Father Michael Sing Ku;Mary Ellen Trainor:Dr. Stephanie Woods;Jessica Jann:Little Girl;Eddy Ko:Hong;Al Leong:Wah Sing Ku Triad Member