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Coach wears a red shirt with a yellow collar in The shape of a triangle around his neck. He has a single antenna, one square tooth and one fang popping out of his bottom teeth, and almost always carries a bat. He wears plain red pants and plain black shoes, and two yellow bracelets on each arm.
Coach at first is very rude to Nerd X-tians, especially Ofrang due to the fact he married Coach’s daughter. He pranks the nerds often, and seems to love training and fighting, possibly more then Radicles. At the end of the episode, he seems to appreciate nerds and no longer feel the need to bully them, when Rad introduces videos game to Planet X.
Coach despises his son-in-law for being a nerd who married his daughter, but by the end of "Planet X" seems to lose that feeling and be alright with him, even being friends with him.
Although he doesn’t agree with his daughter on some things, he seems to really care about her.
He seems to care for his grandson, but at the beginning of his debut appearance tested him, and fought Rad when he stopped Coach from pranking Ofrang.
|93. "We Are Heroes":||Absent||103. "Big Reveal":||Absent|
|94. "KO, Rad, and Enid!":||Absent||104. "Radical Rescue":||Absent|
|95. "Let's Meet Sonic":||Absent||105. "You're a Good Friend, KO":||Absent|
|96. "TKO Rules!":||Absent||106. "Let's Get Shadowy":||Absent|
|97. "K.O. vs. Fink":||Absent||107. "Red Action 3: Grudgement Day":||Absent|
|98. "Chip's Damage":||Absent||108. "Carl":||Absent|
|99. "The K.O. Trap":||Absent||109. "Dendy's Video Channel":||Absent|
|100. "Whatever Happened to... Rippy Roo?":||Absent||110/111. "Let's Fight to the End":||Absent|
|101. "Planet X":||Debut||112. "Thank You for Watching the Show":||Absent|
|102. "Deep Space Vacation":||Non-speaking|
- Coach's physical appearance may be a reference to Coach John McGuirk from the television program Home Movies.