Click through the gallery to see what all the actors are up to now.
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Christopher Mintz-Plasse (McLovin')
The 28-year-old does quite a bit of voice work for the Cartoon Network series DreamWorks Dragons and Dragons: Race to the Edge, and was recently in the movie Get a Job with Anna Kendrick and Neighbors 2: Sorority Rising.
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Jonah Hill (Seth)
The 33-year-old has continued acting and recently starred in MIB 23 with Channing Tatum and War Dogs with Miles Teller and Bradley Cooper.
He's currently in a relationship with a woman named Camille. Unfortunately, not much information is known about her.
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Michael Cera (Evan)
In 2014, the 29-year-old took some time away from Hollywood and released a lo-fi folk album called true that. He most recently starred in the film How to Be a Latin Lover with Salma Hayek and Kristen Bell in 2017.
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Martha MacIsaac (Becca)
The 32-year-old stars in the Canadian Western TV show The Pinkertons and starred in the film Battle of the Sexes with Emma Stone and Steve Carell.
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Bill Hader (Officer Slater)
The 39-year-old is married to writer/director Maggie Carey and they have three kids together – Hannah, 6, Harper, 3, Hayley, 1. He stars on the Hulu series The Awesomes and IFC's Documentary Now!. He also played the role of Giant in the recent film The BFG.
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Emma Stone (Jules)
The 28-year-old has a bunch of new movies coming out this year including La La Land with Ryan Gosling and The Favourite with Kate Winslet.
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Seth Rogen (Officer Michaels)
The 35-year-old recently starred in Neighbors 2: Sorority Rising with Zac Efron and Dave Franco and his animated film Sausage Party was a hit last summer.