I'm pretty sure that this was shown in the early 90s, maybe late 80s but more likely 90s.
It was set in space and though I can't think of what the other characters looked like, I'm sure they were all animals. The main character was a white rabbit and I recall thinking that he was incredibly cool!
It was shown on either the BBC or ITV.
I know this is all really vague, but the only other thing I remember is getting really upset when my mom didn't send off for the action figure of the main character with a cereal box coupon!
Try checking [url]http://en.wikipedia.org/wiki/List_of_anthropomorphic_animal_superheroes[/url], and see if any of the names ring a bell. Usagi Yojimbo was the only white rabbit I could find, but it was set in Japan and was only a comic (minus appearances in the TMNT cartoon)
It suprised me how many rabbit cartoons were made. The only one I could think of was Bucky O'Hare, but he was green.