Which Celebs Dated Their On-Screen Relatives?

Michael C. Hall and Jennifer Carpenter 1 of 11

The idea of relatives dating may gross you out (and it should), but what happens if you're an actor and you fall in love with your co-star -- who happens to be playing your character's relative?

It's happened more often than you might think! For example, Michael C. Hall from 'Dexter' was married to Jennifer Carpenter, who played his adoptive sister, from 2008 to 2011. Creepy!

Click through for some more cast incest stories!