Identified as Susie Hickford, now Suzy Vaughan-Schiele (Helga von Schutz).
Born 15 jan 1958, Living in Cambridgeshire UK.
Proofs
left: a screencap from Locked Out (1977)
right: some screencaps from Count Dracula (1977)
https://imgbox.com/g/PjDzHl4ntZ