SEASON PREMIERE: First three episodes of Season 3, the new season, are available today, as Casual embarks on yet another run of 13 episodes about an unusual, but not twisted, sort of sibling living arrangement. Tommy Dewey plays a single man whose sister, played by Michaela Watkins, is newly divorced – and with a teenaged daughter (played by Tara Lynne Barr) to raise, she decides to cohabit with her bachelor brother. It’s a Casual living arrangement that leaves plenty of room for comedy, though little extra room for anything else.