Al Pacino and Brian De Palma in Scarface and Carlito's Way.
Not the headline star, but John Lithgow teamed up with Brian DePalma in Obsession, Blow Out and Raising Cain. HiDePalma's former wife Nancy Allen appeared in Carrie, Blow Out, and Dressed to Kill. Dennis Franz finally became a star with N.Y.P.D. Blue, but he was a regular DePalma character actor on The Fury, Dressed To Kill, Blow Out and Body Double.
I like this guy: Al Leong is far from a known name, but you've likely seen and remembered his face as that long-haired asian henchman to many a big-screen bad guy in film classics Lethal Weapon, Die Hard, Big Trouble in Little China, Last action Hero, Bill and Ted's Excellent adventure, Black Rain, Action Jackson, and They Live