My goodness, it seems like everywhere you turn somebody else is signing up for the big-screen adaptation of G.I. Joe. Variety reports that Dennis Quaid has now signed to star as General Hawk. You know, your typical 'grizzled' military man. He's probably going to have a cigar chomped in his teeth for three-quarters of the film. The news came on the heels of official word that Channing Tatum had been hired to play Duke; the second in command of the elite team with 'kung-fu grip'. Yesterday, Erik had also reported that Arnold Vosloo (The Mummy) will be playing Zartan, but so far there is no official word.

It looks like Quaid is technically one of the biggest name stars in the cast, which includes Marlon Wayans as Ripcord and Sienna Miller as The Baroness. Some of the other 'Joe' characters who will be making an appearance are Adewale Akinnuoye-Agbaje, who will play Heavy Duty, Byung-hun Lee as Storm shadow, Ray Park as Snake Eyes, and Said Taghmaoui as Breaker.

So far, there aren't many details about the plot, but what we do know is that Stuart Beattie's script will focus on "A European-based military unit known as Global Integrated Joint Operating Entity (G.I.J.O.E.), a hi-tech, international force of special operatives that takes on an evil organization led by a notorious arms dealer". There are still a few more spots to fill, but it looks like director Stephen Sommers has almost finished assembling his team. Just in time too, since the film is scheduled to start shooting next month. G.I. Joe is scheduled for release on August 7th, 2009.

UPDATE: IESB now says that David Murray (a theater actor, apparently) has landed the role of Destro in G.I. Joe. Destro is the main villain in the film, and is described as the "faceless power behind Military Armaments Research System, the largest manufacturer of state-of-the-art weaponry."