Louie is buffoonish and sometimes grumbly.
Louie along with Humphrey the Bear appear in the episode Bearing Up Baby, where he attempts to attack Humphrey and the Rescue Rangers.
He later appears in Goofy's Radio where he tries to eat Goofy but uncontrollably dances to the music of Goofy's radio.
Louie makes a small appearance in Goofy's Valentine Date and in Pluto Saves the Day just before Goofy's Big Kitty is shown where Goofy tells him that this cartoon stars Goofy and him, then roars at him making Goofy say him and Goofy.
- His appearance was modeled after the tiger in the Goofy short Tiger Trouble. The drawings of Louie in the model sheet seen below are animation drawings of the tiger from Tiger Trouble but without the stripes.
- For more pictures and screenshots of Louie the Mountain Lion, click here.