- Country: Greece, UK
- Genres: Adventure, Horror
- Release: 1984-04-13
- Director: Richard Jefferies
- Writers: Richard Jefferies , Nico Mastorakis
- Language: English | Greek
- Stars: James Earl Jones , José Ferrer , Lila Kedrova , Mary Louise Weller , Martin Kove , Lydia Cornell , Deborah Shelton , Sofia Seirli , Despina Tomazani , Rania Photiou
- Runtime: 82 min
- Awards: N/A
- AKA: Verinen vuorovesi (Finland) , The Red Tide , Το κύμα του αίματος (Greece) , Кровавый прилив , Demon Lake , Blood Tide (Canada) , Blood Tide (United Kingdom) , Marea de sangre (Spain) , Die Gezeiten des Blutes , Red Tide , Det blodiga tidvattnet (Finland) , To kyma tou aimatos (Greece) , Bloodtide (United States of America) , Blood Tide (Australia) , Blood Tide , Das Monster aus der Tiefe , Demon Island (United States of America) , Demon's Island (Germany)
- Plot: An adventurer hunting for treasure in Greece accidentally frees a monster that forces local villagers to sacrifice virgins.
- IMDB:tt0083661
Bloodtide Cast · · · ALL
Richard Jefferies
Director
James Earl Jones
Frye
José Ferrer
Nereus
Lila Kedrova
Sister Anna
Mary Louise Weller
Sherry Grice
Martin Kove
Neil Grice
Lydia Cornell
Barbara
Deborah Shelton
Madeline Grice
Sofia Seirli
Sister Elena
Despina Tomazani
Lethe's Mother
Rania Photiou
Lethe
Irini Tripkou
Virgin
Annabel Schofield
Vikki
Spyros Papafrantzis
Dionysis