Are you ready to enter a new Dean-Mension?

Are you prepared to meet new allies? New students? To have new revelations? To meet... the new Shirley?!?

Yahoo has come out with the first extended trailer for Community Season 6 and it gives us our first look at brand new series regulars Paget Brewster and Keith David.

Community Season 6 Trailer

Also of note:

• Greendale will welcome prisoners as students, but make sure no race riots take place.
• Dean Pelton will get a little too engrossed in his virtual reality headset,.
• Abed will pay homage to The Big Bang Theory. BAZINGA!
• And Señor Chang will suffer a nasty cat attack.

Community Season 6 will debut with two episodes on March 17, followed by a new installment released each Tuesday thereafter.

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Visit our Community quotes section to be caught up on the show's most memorable quips, jabs and one-liners.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.