"Office Space" alum Stephen Root has joined “The Empty Man,” Fox’s film adaptation of Cullen Bunn and Vanesa Del Rey’s Boom! Studios miniseries. Deadline reports that Root will play Arthur Parsons, "a charismatic leader of a cult that is suspected to be connected to a string of local disappearances."

Based on Bunn and Del Rey’s Eisner Award-winning comic, “The Empty Man” follows an ex-cop who discovers he has been surrounded by a sinister presence while investigating the disappearance of a teenage girl. The project was optioned for film this past February, thanks to the first look deal between 20th Century Fox and BOOM! Studios. The cast already includes stars such as James Badge Dale, Marin Ireland, Owen Teague and Aaron Poole.

Root is also set to star in the upcoming HBO comedy “Barry," which stars Bill Vader and Henry Winkler, but he is best known for his role as fan favorite character Milton in “Office Space.” He also voiced Bill Dauterive and Buck Strickland in the animated series “King of the Hill."

Fox has brought on up and coming director David Prior adapt the series and helm the feature. Boom!’s Ross Richie and Stephen Christy are attached as producers. The comic series is a supernatural thriller set in a Midwestern town, where a supernatural being may be responsible for a number of disappearances.