XA-79 is a TV series that first aired in 2008. Below are some notable people who have guest starred on the show.
- Peter Swayde (of Microton I, Hangin' Out with Petey, and The Jordsons fame) guest starred three times, in 2009 and 2010.
- Cornelius Varton guest starred once in 2010, reprising his role from the TV series Alaeta, XA-79 creator Max Salcaur's series that ran from 2004 to 2007.
- Thomas Peylen, singer/actor, guest starred once in 2010.
- Kathy Geutbahl guest starred three times in 2010 as Peylen's character's evil mother, Thelma, who is loosely based on Geutbahl's most notable character, Beth Warcox from the series Warcox's Dysfunctional Family, which ran from 1976 to 1985.
- Jacob Ebeans guest starred once in 2010; this guest appearance was his last acting role. He died from wounds from a brutal attack on April 8, 2010. He was 31.
- Eustace Vaagh guest starred once in 2010, at one expense; he shaved his head bald for the guest role, so he must wait for his hair to grow back before he can resume his role in the TV series Cops of Cartananite, which is on hiatus until he does.
- Jeff Cheapwood guest starred once in 2010. This was his first time working with the show's creator since Allover, which the show's creator co-created with Parker Sounsdale.
- Will O'Conneour guest starred once in 2010.
- Brad Balgosta guest starred once in 2010.
- Aaron Stellanda guest starred once in 2010.
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