Seann William Scott
03/16/2011 AT 05:30 PM EDT
Not even "health and personal issues" can keep Steve Stifler down.
Seann William Scott signed on to reprise the party animal character in another American Pie
, to begin shooting in just weeks, despite entering treatment
, his agent confirms to PEOPLE.
Scott, 34, is reportedly set to join Jason Biggs and Eugene Levy for another piece of Pie
, and Thomas Ian Nicholas, Tara Reid, Chris Klein, Mena Suvari and Jennifer Coolidge are in negotiations to return.
The movie starts filming on May 24. Scott's treatment is not expected to affect production, his agent says.
The story was first reported by the Wrap
Reporting by JULIE JORDAN