Michael C Hall stars as a serial killer with a conscience in the dramatic series Dexter, which recently completed its second season on Showtime. Dexter’s day job is as a forensic blood expert with the Miami police department where he works with his sister, Debra Morgan, an up and coming homicide detective. On screen the two play siblings who have playful camaraderie and help each other out, and offscreen they’re said to have been dating for around four months:

[Michael C. Hall and Jennifer Carpenter] “have been seeing each other secretly for some time,” a source tells Star. “They were keeping it quiet because Michael is still married.” The former Six Feet Under star, 36, filed for divorce from his wife of four years, actress Amy Spanger, in 2006. Although it’s still pending, Michael and Jennifer, 28, finally decided that four months of sneaking around was enough!

[From Star Magazine, print edition, January 14, 2008]

I’ve only seen the first season of Dexter as I live overseas and don’t have access to the second season yet, but I’m looking forward to it. It took me a while to get into the show as the premise is so odd, but once I watched a couple of episodes I was hooked and my husband loves it two.

Dexter and Deb are just brother and sister by adoption on the show as Deb’s father, a homicide detective, adopted Dexter. I won’t give away much more of the plot as it’s a worthy series to rent and watch in its entirety. Considering that these two play siblings by adoption it might be a little easier for them to step out of their characters and fall in love. Hopefully they aren’t too burdened by the plot of the show. It seems outlandish enough not to be taken seriously by the people who work on it, although it sucks you in, kind of like Prison Break.

Michael C Hall is a talented actor and Six Feet Under is one of my favorite shows of all time. It’s nice to see him finding success again on Dexter.

Images are promotional photos for Dexter season one and two. It’s confirmed that it has been picked up for a third season by Showtime, although it’s likely to be delayed by the writer’s strike.

Update: The first season of Dexter will air on CBS on Sundays starting 2/17. It will be edited for to meet broadcast TV standards. [via ONTD]