Two more have joined the ever swelling cast of Stephen Sommers' G.I. Joe. Dennis Quaid will play General Hawk, the leader of the good guys, and Arnold Vosloo will play Zartan, a mercenary who works with Destro and Cobra, the bad guys.
The rest of the announced cast are Channing Tatum (Duke), Ray Park (Snake Eyes), Marlon Wayans (Ripcord), Joseph Gordon-Levitt (Rex), Rachel Nichols (Scarlett), Sienna Miller (The Baroness), Adewale Akinnuoye-Agbaje (Heavy Duty), Said Taghmaoui (Breaker) and Byung-hun Lee (Storm Shadow). Shooting is set to start in April.