Cartoon Planet was an American animated variety show that originally ran from 1995 to 1998, and from March 30, 2012 to February 8, 2014 (in a different format) on Cartoon Network.
 A spin-off of the animated "Space Ghost Coast to Coast" talk show, the original premise was that Space Ghost had recruited his imprisoned evil nemesis Zorak and his loud and dimwitted archenemy Brak to assist him in hosting a variety show.
Andy Ronald Merrill (born November 27, 1966 in Newark, Ohio) is an American television writer, producer and voice actor best known for his comedy voice portrayal of the character Brak on "Space Ghost Coast to Coast" and "Cartoon Planet", and other related productions from Cartoon Network utilizing characters from the "Space Ghost" series.
 He is a graduate of Asbury University, where he majored in media communications.
 Merrill is also known for creating Adult Swim's "The Brak Show" with Jim Fortier and Pete Smith.
George Edward Lowe (born November 10, 1958) is an American voice actor and comedian.
 He is perhaps best known for his role as the voice of Space Ghost on the Cartoon Network/Adult Swim/GameTap animated series "Space Ghost Coast to Coast"; he also played the part for its spin-off "Cartoon Planet".
 He continued to voice Space Ghost in several cameos in other programs for several years, even following the conclusion of the series.
 He has also made recurring voice appearances on "Aqua Teen Hunger Force" and "Robot Chicken".
"Space Ghost Coast to Coast" is an animated talk show starring washed up superhero Space Ghost, a.k.a. Tad Ghostal, as a late-night talk show host.
 To aid him, Space Ghost has imprisoned his arch enemies Zorak and Moltar, and has forced them into slavery.
 Zorak acts as band leader and Moltar acts as director and producer.
 They regularly disrupt the show and make no secret of the fact that they hate Space Ghost.
Anime Talk Show (also known as Adult Swim Brain Trust) is an animated television special that aired on Cartoon Network's late night programming block, Adult Swim, on November 4, 2004.
 "Anime Talk Show" revolved around the unofficial pilot for "Squidbillies", however many people consider it the very last episode of "Space Ghost", as it follows exactly the same format of the show, with Space Ghost interviewing guests.
 The short was dubbed "Anime Talk Show" due to it following the premiere of "Perfect Hair Forever", which aired in place of what was supposed to have been the premiere of "Squidbillies".
Space Ghost is an American animated television series produced by Hanna-Barbera Productions.
 It first aired on CBS from September 10, 1966, to September 7, 1968.
 The series was composed of two unrelated segments, "Space Ghost" and "Dino Boy in the Lost Valley".
 An alternative title, "Space Ghost and Dino Boy", is used in official records to differentiate it from Cartoon Network's late-night talk show "Space Ghost Coast to Coast".
 The series was created by Alex Toth and produced and directed by William Hanna and Joseph Barbera.
Sealab 2021 is an American adult animated television series created by Adam Reed and Matt Thompson.
 It was shown on Cartoon Network's late-night programming block, Adult Swim.
 Cartoon Network aired the show's first three episodes in December 2000 before the official inception of the Adult Swim channel on September 2, 2001, with the final episode airing on April 25, 2005.
 "Sealab 2021" is a spin-off of "Space Ghost Coast to Coast", and is one of the four original Williams Street series that premiered in 2000 before Adult Swim officially launched, the others being "Aqua Teen Hunger Force", "The Brak Show" and "Harvey Birdman, Attorney at Law".
The Brak Show is an American adult animated sitcom that aired on Adult Swim.
 "The Brak Show" was created by Andy Merrill, Jim Fortier, and Pete Smith, serving as a spin-off of the animated television series, "Space Ghost Coast to Coast", and featured recurring characters from "Space Ghost Coast to Coast" and "Cartoon Planet".
 Both programs used stock footage from the Hanna-Barbera cartoon "Space Ghost".
 The protagonist is Brak, voiced by Andy Merrill, who developed a quirky persona for the character.
Matthew "Matt" Harrigan is an American television writer, producer, and voice actor who is best known for his work on shows like the "Late Show with David Letterman" and "Celebrity Deathmatch".
 He has also worked as a producer on several shows for Williams Street and was the founder of the short lived studio Williams Street West.
 He also wrote numerous episodes of the series, "Space Ghost Coast to Coast" (including the entirety of the eighth season).
 His latest project is the animated television series, "Assy McGee", which premiered in November 2006.
 In addition, he performs the voice of the regular character, Liquor, on "12 oz.
 Mouse", and the Major Shake Replicant on two episodes of "Aqua Teen Hunger Force" and did the voice of Linda in the "Aqua Teen Hunger Force Colon Movie Film for Theaters".
 He is the creator and host of "FishCenter Live", a talk show on the network.
Space Ghost Coast to Coast is an American adult animated parody talk show, created by Mike Lazzo and hosted by the 1960s Hanna-Barbera cartoon character Space Ghost.
 Though the original 1960s series aired as a standard Hanna-Barbera Saturday-morning superhero cartoon, "Space Ghost Coast to Coast" was a total reboot of the series intended for adults, now reinterpreted as a surreal spoof talk show and produced using the original artwork.
 The first two seasons were presented as a serious talk show with subdued jokes, while the later seasons relied more on surrealism, non-sequiturs, and parodies.

Question: This voice actor stared as Hanna-Barbera's cartoon character Space Ghost in its American adult animated parody talk show?
Answer: George Edward Lowe