Happy Higgenbottom is Bessie's pet dog and best friend.
Happy is often portrayed as a egotistical, generous, helpful, lazy, smart, smug, and lovable dog. Happy was separated from his mom once when he was a puppy. He then started working as a secret agent for S.H.A.D.O.W. and was owned by K.G. Bianca. However, Happy grew tired of the secret agent life and faked his own death but apparently gets some of his left ear torn off. So he decides to live the life of a stray. Until, of course, Bessie finds him and takes him to her house for a dog show in order to get the Animal Appreciation badge. Happy doesn't seem so happy with that idea and even leaves once at the show. However, when leaving, he begins to feel sorry for Bessie and decides to come back just in time. Thus, Happy became Bessie's pet dog and best friend. Happy usually helps or gets dragged into Bessie's adventures. Happy doesn't speak however, he usually makes dog sounds.
Happy is Bessie's pet and best friend in the whole world. Bessie often calls Happy his "senior advicor", In the series finale "C'Mon Get Happy!".
A dog in the episode, Lil' Orphan Happy, who claimed to be Happy's mom but was lying just to live in Bessie's house.
In C'mon, Get Happy!, K.G. Bianca sent a dog girl named Roxxy to lore Happy to her plane. Happy was madly in love with Roxxy even to the point of moving out of the house to be with her. However, he found out that K.G. Bianca was using Roxxy to lore him back to her. Bessie then saves Happy and have a quicky "friendship ceremony" at Las Vegas.