Deuce appears briefly in "The Hand That Rocks the Mabel," when Dipper, Mabel, and Soos visit the Tent of Telepathy. Noticing the attraction's similarities to the Mystery Shack, Dipper points at Deuce and states "they even have their own Soos," prompting Soos to glare at him menacingly.
Deuce has many of the same features as Soos, but he wears a dark gray ski cap and gray shirt with a name tag. He has a full head of black hair (unlike Soos's brown hair), and no facial hair. He has a tool belt and carries a tool box. He has a double chin, just like Soos, and also has a crooked nose.
- 104. "The Hand That Rocks the Mabel" (no lines)
- "Deuce" is another word for "two," which is of course a pun toward Deuce being Soos' "double."