Cowboy Bebop is a 26-episode sci-fi series about a group of bounty hunters in space. The show starts off with Spike Spiegel (a laid-back cool guy) and Jet Black (a grumpy secret softie), who are later joined by Ein (a Welsh Corgi), Faye Valentine (a sexy bounty hunter with a tendency to gamble her money away), and Edward (a brilliant and weird young hacker). A good portion of the series is composed of self-contained single-episode stories, although there are a few story and character threads that run through multiple episodes.
The first time I saw this series was back when it was first airing on Adult Swim. I had seen other anime, but I don't think I'd ever heard such a wonderful English dub before. I can't say that Cowboy Bebop is my favorite anime – the pacing is a bit weird at times, and the ending still makes me mad – but its English dub is my favorite. I've never been able to bring myself to listen to more than snippets of the show in Japanese, because the English dub has, for me, become how the characters should sound.