Biography: Sean Thomason is a senior writer-producer at RiffTrax, where he’s been writing full-time since 2009. Thomason performed alongside the crew onstage at the 2019 SF Sketchfest 'Day of the Shorts', the MST3K Reunion Show, and the group Batman v Superman riff. He has written for late night comedy shows, animated TV series, sketch comedy, and even a good old-fashioned newspaper comic strip.