Disney/Pixar has revealed more of the voice cast for the upcoming Monsters University, letting us know that the likes of Nathan Fillion, John Krasinski, Bonnie Hunt, Sean P. Hayes, Charlie Day, Aubrey Plaza and Alfred Molina will be joining Monsters Inc. voice actors Billy Crystal, John Goodman, Steve Buscemi and Dave Foley. (And yes, we know Bonnie Hunt was in the Monster’s Inc, but she’ll be voicing a different character this time).

We’ve previously been told that Helen Mirren, Julia Sweeney, Joel Murray and Peter Sohn also have parts.

Nathan Fillion is playing Johnny Worthington, a horned beast who’s the arrogant president of Roar Omega Roar, a fraternity at the campus that enlists notable scarer students. Krasinski will be ‘Frightening’ Frank McCay, a member of the star scaring team at Monsters, Inc, and an inspiration for both Mike and Sulley. Hunt meanwhile will be voicing Karen Graves, Mike’s grade school teacher.

The news comes at the same time at some ‘Greek Week’ fraternity and sorority posters have been released from the movie, which you can see above and below. In the film the different groups apparently come together for friendly competition. We’d

Here’s the synopsis: ‘Mike Wazowski and James P. Sullivan are an inseparable pair, but that wasn’t always the case. From the moment these two mismatched monsters met they couldn’t stand each other. “Monsters University” unlocks the door to how Mike and Sulley overcame their differences and became the best of friends.’

The film hits US cinemas on June 21st and arrives in the UK on July 12th. Click on the pics below for larger versions.