Brak is a supervillain on the 1966 Hanna-Barbera cartoon Space Ghost, and is a childlike character on Space Ghost Coast to Coast, Cartoon Planet and The Brak Show.
Brak first appeared along with his brother Sisto as villains on the 1966 Hanna-Barbera cartoon Space Ghost. The two were portrayed as cat-like alien space pirates trying to conquer the galaxy. Brak and Sisto were the main adversaries in the episodes "The Lure" and "The Looters", and the duo were also featured during the six-part Council of Doom storyline. Brak was voiced by Keye Luke for all of his original Space Ghost appearances.
Brak and his brother Sisto returned in the premiere episode of Space Ghost Coast to Coast in 1994, appearing as a parody of Beavis and Butt-Head. Brak would continue to make frequent appearances on Space Ghost Coast to Coast, often just yelling short phrases like "All hail Brak!!!" or "Hi my name is Brak!!". His character would develop more of a personality (as well as an expanded vocabulary) on the spin-off program, Cartoon Planet, which premiered on TBS in 1995. Brak was voiced by C. Martin Croker in his original Space Ghost Coast to Coast, but Andy Merrill took over the role for all of Brak's subsequent Cartoon Network/Adult Swim appearances.
In response to a viewer's letter read on an episode of Cartoon Planet, Brak revealed that his current level of stupidity was the after-effect of being thrown into a space dust cloud by Space Ghost at the end of "The Lure." Cartoon Network's writeup for Brak explained: "This toothy, mask-wearing former pirate made his first TV appearance on 'Space Ghost.' It was during this adventure that Brak was irradiated by Pirranamyte, releasing him from the burden of intelligence. Now armed only with his meager wits and the love of a peppy tune, Brak happily entertains fans and annoys his co-stars with equal aplomb. He will continue to do so as long as he receives a steady diet of pineapple and processed meats."
Read more about Brak at Wikipedia ...
Official Site: Hanna Barbera
Links: Wikipedia Entry (not much) Brak's Scrapbook Adult Swim's Brak Show page