This is Lucky, a rabbit who surprisingly looks very similar to Ralph. Well, don't be surprised. In the show's history, Lucky was the original Ralph on A Day at the Zoo, being very popular until his contract expired and the studio heads quickly replaced him with Ralph. Ever since, Lucky had never been the same, plotting against and seeking vengeance on Ralph for what happened to him.
Lucky on the whole is a very twisted and evil character. He can be called the polar opposite of Ralph. Where Ralph is kind and good-natured, Lucky is cruel, relentless, and somewhat a glory-hound. He merely wants to be back in the limelight and will get there by any means necessary.
This is one of the Bugs Bunny shorts made in the early 90's. This one was made for the 51rst birthday of everyone's favorite rabbit. The designs on the characters may be stock images from WB of that time, but the writing and directing here is worth mentioning. 
It was directed by Greg Ford and Terry Lennon, who previously directed Invasion of the Bunny Snatchers. Like the shorts from the 50's, this and Bunny Snatchers have sort of a very risqué sense of humor, considering when it was made. Both cartoons actually hammer how big-shot executives seemed to have ruined classic characters we love. However, Bunny Snatchers examined this more and with funnier results. (Blooper) Bunny is still worth a look. After all, it is a product of the early 90's.
