He also made a guest appearance on The Super Mario Bros. Super Show! as Howard Stevens, a man who appraises paintings.
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In the fall of 2009, he briefly re-joined the band to play a series of holiday shows throughout Southern California, and in 2012, he made a cameo appearance in the "Showtime!" episode of The Aquabats' television series The Aquabats! Super Show!, playing a superhero appropriately named "Catboy".
As of 2012, Larson also portrays Crash McLarson on The Hub original series The Aquabats! Super Show!
Up until the launch of The Aquabats' television series The Aquabats! Super Show! solidified the band as a five-piece ensemble, Pollock continued to play with the group as an additional guitarist numerous times after his departure, primarily performing at southern Californian shows or large festival events such as the 2010 Bamboozle and the 2011 Coachella Valley Music and Arts Festival.
He also wrote for numerous cartoon series including Fat Albert and the Cosby Kids, He-Man and the Masters of the Universe, The Berenstain Bears, The Busy World of Richard Scarry, Tiny Toon Adventures, Teenage Mutant Ninja Turtles, The Super Mario Bros. Super Show! as well as Saturday morning series such as various Sid and Marty Krofft's H.R. Pufnstuf series.