Brian Stack, born August 18, 1964, is an acclaimed American voice actor, comedian, and writer known for absurdist humor and eccentric character work honed on Conan O'Brien's late-night shows. This versatile voice actor brought quirky charm to video games like Deer Avenger and Deer Avenger 2: Deer in the City, voiced the lead Marmoset in Rio, and played the Airplane Pilot in Hotel Transylvania. Currently writing for The Late Show with Stephen Colbert, he voices Cartoon Donald Trump, God, and The Ghost of Abraham Lincoln, roles distinguished by sharp satire and deadpan delivery that feel unmistakably human.