Exclusive: Chuck Hittinger (“Pretty Little Liars”) has rounded out the cast of Universal’s “American Reunion,” the latest in the “American Pie” series.Hittinger nabbed the pic’s last major part as Marco, a jock and a bully who takes his girlfriend for granted. “Reunion” brings the entire “American Pie” cast back for their high-school reunion in East Great Falls. Craig Perry, Chris Moore and Warren Zide produce the project, already under way in Atlanta. Jason Biggs, Seann William Scott, Alyson Hannigan, Thomas Ian Nicholas, Chris Klein, Eugene Levy, Tara Reid, Eddie Kaye Thomas, Jennifer Coolidge and Mena Suvari are all set to return with Jon Hurwitz and Hayden Schlossberg writing and directing. As Variety first reported, “Pie” newcomers Katrina Bowden and Dania Ramirez are also on board. Hittinger is repped by Principato-Young Entertainment, Abrams Artists Agency and attorney Lev Ginsburg.