Alson known as Robert Shellhorn was a producer and director on Muppet Babies and All-New Dennis the Menace. His directing work includes shows such as The New Scooby and Scrappy-Doo Show, Smurfs, Jem, G.I. Joe, Teenage Mutant Ninja Turtles, Darkwing Duck and The Wild Thornberrys. Recently he has been working as an animation timer on D.C. Comics's direct-to-video releases such as Batman: Under the Red Hood and Superman/Batman: Apocalypse. Also did dialogue coding for Thundercats 2011.

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