Dream Demon is a 1988 British horror film co-written and directed by Harley Cokeliss and starring Jemma Redgrave in her debut role opposite Kathleen Wilhoite, Jimmy Nail, Susan Fleetwood and Timothy Spall.

Jemima Rebecca "Jemma" Redgrave is a British actress, and a member of the Redgrave family. She played the title character in four series of Bramwell, and has a recurring role in Doctor Who as Kate Stewart, Head of Scientific Research at UNIT. As well as a career in television, she has appeared in many stage productions and on film, including her portrayal of Evie Wilcox in the Merchant Ivory film Howards End.