Question: Who did Andy Merrill play on a spin-off of "Space Ghost Coast to Coast?"

Context paragraphs:
Andy Merrill: 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.

List of Space Ghost Coast to Coast episodes: "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.

Space Ghost (TV series): 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.

Alex Toth: Alexander "Alex" Toth (June 25, 1928 – May 27, 2006) was an American cartoonist active from the 1940s through the 1980s.  Toth's work began in the American comic book industry, but he is also known for his animation designs for Hanna-Barbera throughout the 1960s and 1970s.  His work included "Super Friends", "Space Ghost", "The Herculoids" and "Birdman".  Toth's work has been resurrected in the late-night, adult-themed spin-offs on Cartoon Network: "Space Ghost Coast to Coast", "Sealab 2021" and "Harvey Birdman, Attorney at Law".

The Brak Show: 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.

Space Ghost Coast to Coast (album): Space Ghost Coast to Coast is a soundtrack album by Sonny Sharrock, containing music composed for Cartoon Network's "Space Ghost Coast to Coast".  The disc is a promotional CD advertising the first season of the series, and, as such, is a rarity and very hard to find.

Cartoon Planet: 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.

George Lowe: 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: 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.

C. Martin Croker: Clay Martin Croker (January 10, 1962 – September 17, 2016), generally billed as C. Martin Croker, was an American animator and voice actor.  He was best known for having provided the voices of Zorak and Moltar on the animated series "Space Ghost Coast to Coast", replacing Don Messick, who originally voiced the characters in the 1960s series "Space Ghost".

Supporting paragraphs: Andy Merrill Cartoon Planet
Answer: Brak