He'll reportedly be playing Leo Wingate, "a gallant and sweetly shy entomologist who falls head over heels for Wendy Beauchamp (Madchen Amick)," according to EW. "The scholar is said to specialize in rare and exotic insects, and he soon begins to wonder whether Wendy is more interested in his body or his bugs. He is set to guest star in the fourth episode, with more episodes possible."
Prinze Jr.'s last appearance on the small screen was as "Cole Ortiz" on 24.
The episode of East End featuring Prinze Jr. will air October 27. He's also slated to guest star on the season premiere Bones.
(source)
