bad hair

Brendan Fraser is... GI Joe: The Rise of Cobra!

It was pretty much a walk-on cameo role where he watches Ray Park beat-down Channing Tatum during a training session. When Tatum finally cuts Ray in half gets the drop on Ray (who plays super-ninja Snake Eyes), Brendan nods to the instructor and says, "He's a Joe" then walks off screen and that's the last we see of him.

I think he only took the role so he could wear a beret. :p
Brendan Fraser
The only reason he took on that cameo role in G.I. Joe, was that he begged one of the producers of The Mummy: Tomb of The Dragon Emperor on set. And plus that he is a G.I. Joe fan.