Sam Worthington (40)
The stunningly sexy Sam Worthington was only in the movie and television biz for nine years before he got that Avatar cash in 2009, and with THREE sequels in the works, let's just count ourselves lucky that he gave an ass-baring performance in 2015 miniseries Deadline Gallipoli. It's basically pro bono work, and I just want to personally thank Sam for his contribution to my spank bank. Just look at that gorgeous, ageless ass! Here's to 40 more years!