As fans reel from 'Dexter''s season 4 finale shocker, several of the show's stars are still savoring their experiences shooting it, and particularly the addition of guest star John Lithgow. The Oscar-nominated actor (and '3rd Rock from the Sun' alum) played this past season's resident baddie, the Trinity Killer -- a religious family man whose charitable works belied his dark side.

"It's been fantastic," said C.S. Lee, who plays show's geeky forensics expert, Vince Masuka. Lee and fellow stars spoke with Aol TV at Sunday's 'Dexter' finale party in Los Angeles. "I knew right from the first three or four episodes in [that] it was going to be great. Having John Lithgow with us -- he's an amazing actor, an amazing guy. And he's so nice in person, that when you see him play this serial killer, it's that much more creepy -- because you're drawn to him, and next thing you know, he's going to chop you on the head with a hammer."

(S04E09) "Everything is exactly the way it should be. Perfect." - Rita Morgan

The season is almost over and that means things are bound to ramp up as Dexter moves in closer to kill the Trinity Killer. But this week, we get treated to a special Thanksgiving episode. Think of it as a sordid cross between the "Thanksgiving Day" episode from Father Knows Best mixed with the director's cut of any episode of Twin Peaks.

After explaining his identity, background and own "Dark Passenger," this week's episode dove head first into his family who aren't as Norman Rockwell as Arthur Mitchell might want Dexter and the rest of the world to believe. It turns out they are probably the most interesting aspect of Mitchell's twisted life and could turn out to be a huge asset to bringing the man down, now that he no longer has them in his upper hand.

A recent episode of Showtime's Dexter titled "Blinded By the Light" was probably one of the weakest episodes in recent memory, but one moment saved it from becoming a total yawn-fest: Masuka's bad ass truck.

For those who don't know the backstory, Dexter got in a very serious accident while driving home from a recent kill and fell asleep behind the wheel. He suffered a concussion and doctor's orders prevented him from driving. So one night, Masuka drives our boy home in the biggest, most bad ass 4-by-4 with lighting painted down the sides, suspension that reached the sky and a stereo system that could let him listen to loud, obnoxious country music from space.


Sounds like Dexter isn't the only one trying to wear a "mask" to hide a deep, dark secret.