Luis Guzman said he is totally down with doing this film in a video interview a while back. Philip Baker or even Julianne Moore would be nice (yes they are old). Pynchon's voice is really good. I wouldn't be surprised if Paul uses that voice in something.
One more thing. Cheech & Chong (or at least Chong) would be awesome for this. lol I'd love to see that happen.