Zach Selwyn, of G4 Attack of the Show fame, famously campaigned, via rap video, to get onto Stargate Atlantis.
Suitably amused by said video, the producers gave Zach the role of “Scientist #2” in an upcoming Season 4 episode. The fruits of his efforts can be found on YouTube.
For those particularly sensitive to spoilers, you can see the new uniforms (spiffy) and get to hear the plotline of an upcoming episode, complete with the filming of one scene. But don’t you really want to go look?