The Grim Adventures of Billy and Mandy - 3x20 - Bearded Billy- Followmy.tv

When Billy sees his father shaving, he decides having a beard is cool and buys "Hair Raiser Tonique", a hair-growing formula. Then, Grim casts a spell on the tonic to make its effects appear faster, but Billy exaggerates in the quantity and grows hair in all his body. Consequently, Billy is mistaken for the Sasquatch, and a reward is offered for his capture. In the end, Hoss Delgado also receives the tonic and is captured and exhibited as the Sasquatch, while Mandy collects the reward.