Directed by David Cronenberg Written by David Cronenberg Cast Paul Hampton ... Roger St. Luc Joe Silver ... Rollo Linsky Lynn Lowry ... Nurse Forsythe Allan Kolman ... Nicholas Tudor (as Alan Migicovsky) Susan Petrie ... Janine Tudor Barbara Steele ... Betts Ronald Mlodzik ... Merrick Barry Baldaro ... Detective Heller (as Barry Boldero) Camil Ducharme ... Mr. Guilbault (as Camille Ducharme) Hanna Poznanska ... Mrs. Guilbault (as Hanka Posnanska) Wally Martin ... Doorman Vlasta Vrana ... Kresimer Sviben Silvie Debois ... Benda Sviben Charles Perley ... Delivery Boy Al Rochman ... Parkins Julie Wildman ... Miss Lewis Arthur Grosser ... Mr. Wolfe Edith Johnson ... Olive Dorothy Davis ... Vi Joy Coghill ... Mona Wheatley Joan Blackman ... Elevator Mother Kirsten Bishop ... Elevator Daughter (as Kirsten Bishopric) Fred Doederlein ... Emil Hobbes Sonny Forbes ... Garbage Room Man Nora Johnson ... Laundry Woman Cathy Graham ... Annabelle Robert Brennen ... Boy Felicia Shulman ... Girl Roy Wittan ... Bearded Man (as Roy Whittan) Denis Payne ... First Elevator Man Kevin Fenlow ... Second Elevator Man Uncredited Cast David Cronenberg ... Infected Crowd Member / Stabbed Shoulder Produced by Don Carmody John Dunning André Link Alfred Pariser Ivan Reitman Peter James

Additional Info Premiere: October 10, 1975 Theatrical Release: July 06, 1976 DVD Release: September 30, 1998 Blu-ray Release: September 15, 2020 Country: Distributor: Lions Gate Home Entertainment Websites: Alternate Titles Frissons The Parasite Murders They Came From Within Production Companies Cinépix Film Properties (CFP) DAL Productions Canadian Film Development Corporation (CFDC) (support) Distributors Trans American Films   (1976) (USA) (theatrical) Anchor Bay Entertainment   (1998) (USA) (VHS) Avalanche Home Entertainment   (2000) (USA) (VHS) Image Entertainment   (1998) (USA) (DVD) Vestron Video   (1986) (USA) (VHS) Rating Stats Overall Rating 6.2 / 10 Our Rating 5.9 / 10 Reviewers 6.0 / 10 Reviewers 6.0 / 10 Your Friends -- / 10 Male Users 5.0 / 10 Female Users 5.0 / 10 Site Ranking #2,114 / 7,621 Ratings Breakdown Perfect 1 total rating Almost Perfect 2 total ratings Average 3 total ratings Page Views Today 1 This Week 3 This Month 3 This Year 26 All Time 5,970