By Adam B. Vary
Updated May 09, 2011 at 12:00 PM EDT
Credit: Alexandra Wyman/


Kate Walsh is joining Emma Watson and Logan Lerman (Percy Jackson and the Olympians: The Lightning Thief) in The Perks of Being a Wallflower, EW has learned exclusively. Walsh will play a smart, Midwestern mother concerned about her shy high school freshman son (Lerman), who is befriended by a party-happy high school senior (Watson). Stephen Chbosky, the author of controversial young adult novel, is directing from his own screenplay; production is currently underway in Pittsburgh. Mae Whitman and Johnny Simmons (both from Scott Pilgrim vs. the World), and Nina Dobrev (The CW’s Vampire Diaries) also star in the film.