According to Deadline, the South African-Canadian actress will play a character called "Dr. Chausser, an animal behaviorist with a PhD with a history of self destruction."
The 13-episode series also stars Famke Janssen, Bill Skarsgard, Dougray Scott, and Landon Liboiron.
Hemlock Grove revolves around the murder of a young girl found close to the former Godfrey steel mill. The suspects in her killing include Peter (Liboiron), a 17-year-old Gypsy kid from the wrong side of the tracks, and Roman (Skarsgard), the arrogant Godfrey scion, whose sister Shelley is disturbingly deformed and whose mother, Olivia (Janssen), the beautiful and controlling grand dame of Hemlock Grove. In the end, Peter and Roman decide to find the killer themselves.
McClure also guest-stars in the upcoming second season of SyFy series Alphas, starring Malik Yoba.