38. Michael C. Hall And Jennifer Carpenter
These two played step-siblings in Showtime’s Dexter – so don’t expect any on-screen chemistry there! Hall and Carpenter both played Dexter and Deborah, respectively, and eventually married in 2009 while the show was in production.
Sadly, the two stars ultimately divorced in 2010. This didn’t stop them from working amicably together for the rest of the show, which came to its disappointing end in 2013. Apparently, it wasn’t tough for them to work together afterward since they shared very few scenes.