|Job||Student at Tom Landry Middle School|
Potentially Boomhauer's illegitimate child
|First appearance||Square Peg|
Garth was a student at Tom Landry Middle School and friend of Bobby and Joseph, who looked very much like a child version of Boomhauer with long blonde hair. Whether or not he was initially meant to be Boomhauer's son is unknown. He first appeared in "Square Peg" as a background student, and in the episode "Order of the Straight Arrow" which was his only major appearance, going to a scout trip along with Bobby, Joseph, and Randy. He disappeared after the second season, and never had a speaking role.