If you are wondering if Dexter Morgan (Michael C Hall) is going to be sulking at home after being dumped by Lumen (Julia Stiles) last season, you have no worries. Executive Producer Sara Colleton told TVGuide.com that when we meet the cables bad boy at the start of the season, he will be back to his old self and ready for some action!

“We thought a clean start to this season would be to jump ahead a year, so he’s not getting over Lumen, and he’s not still in the throes of dealing with the Rita [Julie Benz] thing,” Colleton says. “We wanted to jump ahead a year and find that Dexter has gotten his groove back. He’s gotten over Rita and Lumen.”

I know many of you weren’t as happy with the progress of the fifth season but there was no way to go from such a HUGE ending in season four without Dex going through some transitions. So now that we are jumping ahead a year (and two years since Rita’s demise) the single dad will have had enough time to re-bond with his dark passenger just in time to give us another amazing season.

“When we open up Season 6, we find Dexter in a very positive place in his life,” Colleton continued. “It’s like the Dexter we know and love is back, and he still wants to play.”

I’m seriously excited for more bad boy Dexter especially after hearing about all the fabulous guest stars set to make appearances. They include Colin Hanks, Mos (Def), Brea Grant, and Edward James Olmos.

This could also be the moment that Deb (Jennifer Carpenter) discovers her beloved brothers biggest secret, in what could be the ultimate end-of-season cliffhanger. What would she do with the information?

The cast of the Showtime hit Dexter has grown by one more as of this morning! Canadian actress Molly Parker has just been signed on for a guest role according to TVLine.com.

Here are the details:

TVLine has exclusively learned that Parker will appear in several Season 6 episodes of the Showtime drama as Lisa Marshall, the sister of Colin Hanks’ mysterious new character, Travis. Sounds innocent enough, but details surrounding Parker’s role are scarce — which piques our interest even more.

If you recall, Colin joined the cast on May 10th and is set to play the role of “Travis, a highly intelligent young expert on ancient artifacts who gets linked to a series of grisly murders in Miami.” No one knows yet whether he will end up saran wrapped in one of Dexter’s (Michael C Hall) kill rooms so you will have to tune in!

The clue from TVLine seems to give me the impression that Lisa Marshall could even be suspect! What if she is setting up her brother or circumstances have made Travis look suspect.

Parker, who previously starred in the HBO drama Deadwood, joins an amazing cast of guest stars including Mos (Def), Edward James Olmos, and the aforementioned Hanks.

In what is growing into a list of brilliant guest stars, Edward James Olmos has just been announced as an addition to the cast of Dexter for season six. The veteran actor known for his various work including Battlestar Galactica, Miami Vice, and Stand and Deliver will play the role of “a brilliant, charismatic professor of religious studies” according to a press release sent out by Showtime Network.

The description doesn’t give us much to go on like how this character will be related to Dexter (Michael C. Hall). He could end up being a “friend” or “foe” but the big question is, will he end up covered in saran wrap in one of Dexter’s kill rooms?

He joins the previously announced guest cast including Colin Hanks and Mos (Def). Previous distinguished guest cast have included Jimmy Smits, John Lithgow and Julia Stiles. Production on DEXTER begins May 25th in Los Angeles and will premiere on SHOWTIME this fall.