Bill Wellington is a character portrayed by Stephen Macht in the ABC crime series Castle. Wellington, described, not inaccurately, by Natalie Rhodes as looking "like a pit bull", was a very wealthy and powerful client of Stacey Collins' matchmaking service. Not until Mr. Wellington was married to bride number three, through her endeavors, however, did Stacey learn that he had the nasty tendency of dumping his brides, practically penniless, just before their pre-nups expired.