Arnold Shemp "Arnie" Thomas was a poker playing buddy of Dan Conner and the boyfriend and then estranged husband of Nancy Bartlett (played by Sandra Bernhard) on Roseanne who returns to her to remarry her in Season 5 after leaving her in Season 3. The part of Arnie is played by Tom Arnold, Roseanne Barr's real-life husband at the time. Arnie appears in 19 episodes from Seasons 2 thru 5.