Uncredited actor: Steve Ryan?
Check the scene where the chartered plane is taking off and Billy is trying to get the pilots to stop. The pilot who chases him out of the cabin--isn't that Steve Ryan (I)? I've only seen him in two other, very recent projects, "Arrested Development" and "Six Feet Under," so I could be wrong. But I'm telling you, he sure looks and sounds like him, especially to me as an "Arrested Development" fan. (I was ready for his fake arm to come off and have him declare, "And _that's_ why you never charter a plane!")