Hugo is a large, rather naive, and easily fooled Abominable Snowman who really likes bunny rabbits. He likes to name his pets "George" and tried on two occasions to make Bugs Bunny his pet. He seems to be an actual snowman, as he melted when exposed to the sun too long. His character is a takeoff on Lennie Small in Of Mice and Men. "George" refers to Lennie's friend George Milton
Hugo appears in the episode The Abominable Snow Rabbit when Bugs and Daffy Duck run into him after accidentally traveling to the Himalayas. When Bugs later brings Hugo to Palm Springs, Hugo cuddles Daffy again while sweating which ends with Hugo melting.
In Spaced Out Bunny, it was shown that he was captured by Marvin the Martian and brought to Mars, where Marvin attempted to give Bugs to him as a pet. With help from Bugs, Hugo turned against Marvin the Martian and placed him in his wristwatch. Hugo then tossed the spaceship that Marvin brought Bugs in towards Earth like a frisbee in order for Bugs to get back to Earth.