With ABC’s LOST about to air its fourth episode of the final season next Tuesday, we’ve already seen the reappearance of a couple characters who disappeared or died. First, Charlie  (Dominic Monaghan) showed up in the alterative timeline where the characters’ never went to the island, then Boone (Ian Somerhalder) made an appearance on the plane sitting near Locke and finally Claire (Emilie de Ravin) showed up in a cab with Kate.

Now, we can add Maggie Grace and her character Shannon to the list of characters making a reappearance on the show. If you recall, Shannon was killed during season two after her and Sayeed had expressed their feelings for each other. Now, Grace’s character will return for an unspecified number of episodes.

Of course, the show’s producers are keeping her story under wraps but rest assured, it will be something interesting. . . especially for Sayeed. Also, in case you’re keeping track, Harold Perrineau, Cynthia Watros, and Rebecca Mader are among the other dearly departed who will appear in LOST’s sixth and final season.

What, no Ana Lucia?

Whoops, somehow my DVR didn’t record last week’s episode and I missed it. But Agent Al Gough (Lee Thompson Young) kills himself to stop his particular future from happening. His future being he kills a single mother in an accident and he also wants to prove that you can change things by choosing to do so.

Regardless, this week’s episode has Simon (Dominic Monaghan) and Lloyd Simcoe (Jack Davenport) play a poker game, and whatever-his-name is Benford’s Sponsor finds his formerly dead daughter still alive.

While on vacation for their anniversary the Benfords (Joseph Fiennes and the wax model known as Sonya Walger) are playing around in some house on the beach, before Fiennes gets a call asking him to come in. The reason being is someone caught some video footage of a mugging and the people doing the mugging had a triple star tattoo that Fiennes recognizes as one of the guys trying to kill him on April 29.

Investigating, it looks like the people in the mugging take a case from the muggee before shooting this victim. The witness, who took the video, is now being hunted by the muggers who kill her roommate. Nothing really comes of this besides some more of the usual questions “is this going to come true/isn’t this/are we powerless to stop it?” It’s starting to get annoying.

This week we meet Dominic Monaghan’s character of Simon, but we do not get anything more than a  tease on how he and Simco killed 20 million people in their experiment with the blackout. So that mystery is extended, but at least we know who is responsible and how they got it. Also, Mark (Joseph Fiennes) meets the man who will replace him in the bed of his wife (Sonya Walger), and she finds out that Mark was drinking in his flash forward. All this and more in another innocuous episode of Flash Forward.

We open on a train ride coming from somewhere and going to Los Angeles. Here we have Monaghan’s character seducing a woman by explaining quantum physics, achieving something in three minutes the Big Bang Theory has been trying to do for however long that show has been on.

Following the last episode, Agent Janis Hawk survives her gun fight, but in having been wounded in her pelvis will never be allowed to bear children. So, this raises the question of how she will be pregnant come April 29, 2010.

The over coming thread throughout this episode is now that we know the future: will it actually happen? It seems like this episode seems to suggest no, not exactly. With Janis now not being able to give birth, and Simco’s super weird kid trailing the Benford’s super weird kid to their house, causing Simco and Olivia to finally realize their flash forwards was kind of ridiculous but creepy-cool. Creepy cool in a way that The Shining is creepy cool and those two kids are straight up creepy, with their chant over that doll of the Benford’s kid.

A few months ago a mysterious ad appeared on ABC with stars Patrick Dempsey, Courtney Cox, Ed O’Neill, and Dominic Monaghan playing foosball. Not so mysterious, until viewers realized that Monaghan wasn’t currently cast in any ABC shows, after having left the cast of Lost. Rumors swirled. Well Lost fans, it doesn’t look like Dominic will be coming back to the island.

Instead, Monaghan will be joining the cast of the new ABC show, FlashForward, AP reports. The show takes place after the world suffers a massive blackout where everyone gets a glimpse of their future, and now have a choice to fight or embrace their fate.

Monaghan will star alongside Joseph Fiennes, Courtney B. Vance and Sonya Walger. The show premiers on Thursday, September 24th after Grey’s Anatomy.