Snyder was hired to voice Master Shake on Aqua Teen Hunger Force, auditioning during a phone call to Dave Willis. Snyder provided the voice of Gazpacho on Chowder, Todd and Benny Lee on the G4TV show Code Monkeys, "The Alchemist" on The Venture Bros., and Granny Cuyler on Squidbillies. He voices Leonard the Koala in The Penguins of Madagascar and plays a teacher named "Mr. Baldwin" on the Disney series Fish Hooks. He played Alistair in Open Season 3. Snyder provided the voices of Sam as well as Cold Fusion Reactor Dad on the web series Suicide by Side.
He narrated the Adult Swim web series Sipes Stories that he co-produced with Andy Sipes. He has starred on Adventure Time as the Ancient Sleeping Magi of Life Giving from the episode "Little Dude" in the fifth season. He played the voice of Belcitane within the White Knight Chronicles, and the White Knight Chronicles II. He also shows up in the web series "Bravest Warriors" in season 2 episode 6. He voices the recurring character McSweats in the Disney XD animated series Pickle and Peanut as well as Graballa the Hutt on the Disney XD animated series Lego Star Wars: The Freemaker Adventures.