Val Kilmer had an iconic cameo in HBO's Entourage.In season 1, Kilmer played 'The Sherpa', a character known for his eccentricity and love for herbal supplements.Kilmer's character stole the scene with memorable lines and an unexpected twist.While Val Kilmer's recent cameo in Top Gun: Maverick reminded fans of his talent, his Entourage appearance remains one of his most underrated.