It's John Stamos on Glee! He plays a dentist who is smitten with Emma on season two.
Added:
Looking pretty, Lea Michele! The actress smiles here for a season two promotional image.
Added:
The amazing Chris Colfer poses here for a promotional photo. He was nominated for an Emmy for his work on season one.
Added:
What perfect guest casting. John Stamos will come on board Glee in season two as a dentist who dates Emma.
Added:
Finn and Rachel will be a legitimate couple on season two of Glee. Expect a lot of PDA, as evidenced here.
Added:
New Directions kick back and watch the stage in this scene from the show's second season premiere. The episode is titled "Audition."
Added:
Almost the entire cast of Glee is pictured here in the episode "Audition." That's the title of the second season premiere.
Added:
Will Puck and Quinn give their relationship a real chance on season two of Glee? They look chummy in this scene, don't they?
Added:
Sue addresses Santana in this season two premiere photo. The former will be her usual, hilarious self throughout the season.
Added:
Coach Beiste (guest star Dot Jones) is seen here with Will and Sue. It's a scene from the second season premiere of Glee.
Added:
Their characters flirt all the time on Glee. And now Cory Monteith and Lea Michele get together for a season two promotional photo.
Added:
Look out, world! The Glee stars are armed with their very own slushees now and they are not afraid to use them!
Added:

Glee Quotes

I'm gonna miss all of you. I love you guys.

Puck

Relationships are a lot like flowers. If you find the right seed, put it in good soil, give it water and sunlight, bam. Perfect bud. And then comes winter and the flower dies. But if you tend that garden, spring will come along and that flower will bloom again.

Finn