'Glee' Guest Stars Wish List & New Cast We'll Meet Soon

'Glee' Guest Stars Wish List & New Cast We'll Meet Soon

While "Glee," at its heart, is the story of the core group of New Directions club members and their individual journeys through the wild world of high school, the show also has a variety of auxiliary players and guest stars who come in and spice up that tapestry. Sometimes, like in the case of Darren Criss, the guest can make the transition to full-out star, both on the show and in pop culture. Other times, a guest falls flat and isn't allowed to grow into an obsessed-about character (we won't name names for kindness sake.) With "Glee" returning from its three-week hiatus tonight we round up the upcoming wave of new guest appearances (mainly stocked by "The Glee Project" finalists) and some former guest stars who we'd like to see make a return to the show.

Meet the New Class

Lindsay Pearce (Harmony) -- "The Glee Project" runner-up was already featured in the first episode of the season as Harmony, a Rachel look-and-sound-alike competing for a coveted spot at NYADA, the fictional performing arts college that both Kurt and Rachel are aiming to attend. She, along with her tap-dancing troop of over-achievers, gave an impressive performance of an "Anything Goes/Anything You Can Do" mashup that sent Kurt and Rachel sobbing to their car. She'll be back for one more appearance, likely in a competition episode where she'll be at odds with the New Directions wunderkinds.

Grant Gustin (Sebastian) -- The Dalton Warblers need a new frontman ever since Blaine defected to New Directions, and Sebastian will step in to fill that role in episode five, which also marks the Warblers return to the show since Kurt's return to McKinley last season. Sebastian has been described as the new "Glee" villain, with his sights set on a romantic match with Blaine despite the fact that he's one half of the most talked about "Glee" couple. While there's no confirmation that Gustin will continue to stir up trouble, the popularity of The Warblers last season implies that Glee will keep them around for at least a few musical numbers and a bit of drama.

'Glee' Villain Grant Gustin Is Feeling Lucky

Alex Newell (Unknown) -- The other runner-up from "The Glee Project" will also feature in the mix as a star from a rival school, according to reports. Rumor has it he'll appear soon as the star of Vocal Adrenaline, and there's talk that the self-proclaimed diva will be interacting with Mercedes and Kurt, apropos since "Glee Project" judges described him as a combination of the two characters during his auditions. He made his biggest splashes in his drag alter ego, but it's yet to be confirmed how he'll appear on the show.

Damian McGinty (Rory) -- "Glee Project" co-winner and former member of Celtic Thunder will make his debut multi-episode arc appearance Nov. 1 as Rory, a foreign exchange student from Ireland who lives with (and crushes on) Britt. He'll attempt to join the New Directions straight-away, since they're losing members as people defect to the new rival glee club. He's got two songs in his premiere episode, including "Bein' Green and "Take Care Of Yourself"

Sam Larsen (Unknown) -- The biggest X-Factor of "Glee" casting right now is Larsen, the other co-winner of "The Glee Project" who doesn't yet have a set character or arrival date (spoilers say he won't make an appearance until after the holidays). We're hoping for a good love-match for Quinn, if they go the romance route, or perhaps someone a little more rock and roll who has to learn how to be part of the Glee scene.


The Graduates -- We Want You Back!

Jon Groff (Jesse St. James) -- Sure, Glee may be trying to bring in a new student villain to replace him now that he's grown up, but the original is always the best (plus, we wouldn't put it past St. James to make a move on Blaine just to shake up the competition.)

Likelihood of Return: Confirmed! -- Groff will be back in a few episodes as the coach of his Alma mater, Vocal Adrenaline. Apparently half a semester of college and a swoon-worthy hair is all you need to coach high school glee.

Gwyneth Paltrow (Holly Holiday) -- We know, color us shocked that we actually want Paltrow back on "Glee." Before her first appearance it was dreaded, but she's definitely earned her place as a worthwhile character for the show. For one, she's the only substitute we know that exists in the universe and those McKinley teachers have to get sick sometime.

Likelihood of Return: Medium -- Her storyline with Will was dealt with last season, but the PR bump from such and A-list appearance would be great for "Glee," plus she picked up a Emmy for her work.

Kristin Chenoweth (April Rhodes) -- We now know that her Broadway music, "The Rhodes Not Taken" was a smash success and led to a Tony award for the leading man role Will forsook to stay with New Directions, but we think a visit back to Lima is due for April.

Likelihood of Return: High -- She's a classic voice on the show who's had extended storylines. Chenoweth may be be busy with her own album release and another TV show, but if Mike O'Malley can make the time, Chenoweth certainly can.

Neil Patrick Harris (Bryan Ryan) -- Will's high school rival came on the show to crush the students dreams (just like his had been crushed in a post-high school performance world) and is eventually shown the light thanks to Will sacrificing his community theater production role in Les Mis to Ryan. NPH won a Emmy for this guest starring role season one, but unfortunately he didn't come back at all last season.

Likelihood of Return: Medium -- Ryan's original intent to cut arts funding for the glee club matches up well with Sue's current political campaign. Since this is "Glee," he could either come back still reformed by Will's guidance or completely in line with Sue's vision (can we say Campaign Manager?)

John Stamos (Dr. Carl Howell) -- He may have divorced Emma (without ever consummating the marriage, poor guy!) but the sexy dentist would be welcomed back into the "Glee" fold.

Likelihood of Return: Medium -- We wouldn't put it past "Glee" to have him make an appearance to shake up the Emma and Will union sometime this season.

Cheyenne Jackson (Dustin Goolsby) -- Jackson is the biggest wasted opportunity "Glee" has had with a guest. The Broadway star's turn as the slutty, ear-piece wearing Vocal Adrenaline coach was funny, but not once did he get to show off his pipes. He needs to come back just to sing a single song, blow everyone away, and then storm off into the sunset.

Likelihood of Return: Small -- With Groff taking over his role at VA, and with "30 Rock" filming, we probably won't see Dustin again any time soon.