His facial features resemble those of his older brother. He has shoulder-length golden blonde hair with bangs that cover his eyes, and he has a well-built muscular body shape. Also, he wears a green shirt with cut-up sleeves and dark navy blue jeans with grey sneakers.
There's little known about him except him being an older brother of Sumo. He's more of a jerk to his little brother, Sumo, and it's unknown if he acts like this to all his other siblings. However, in "Stump Brothers", when his father was trying to put both into a family tradition test (since he is annoyed of Tanner bullying Sumo), by singly hammer the nail on a tree stump, but when he tries, the nail fails to flatten, leaving Sumo to do it as he succeeds. Later in the episode, he and Sumo were angrily enagaged in combat, Sumo tries to state that Tanner is always messing with him. He finally stated that he wanted Sumo to not get soft but instead to get him to toughen up. He summarized that Sumo's friend, Clarence, is being too soft on Sumo and not being tough enough.
- "Dream Boat (First Appearance)
- "Too Gross For Comfort (Cameo)
- "Bird Boy Man" (cameo)
- "Stump Brothers" (Major role)
- "The Phantom Clarence (preview only)
- "Badgers & Bunkers"
- "Dingus & McNobrain"
- "Flood Brothers"
The gallery for Tanner can be found here.
- In "Stump Brothers", his real name is revealed as "Tanner".