She was also the stunt double for Katy Manning's Jo Grant in the Doctor Who episode "Carnival of Monsters" in 1973.
[6] In the mid-1970s, Regan appeared in several sex comedy films including Carry On England, Confessions of a Pop Performer and Adventures of a Private Eye.
Regan appeared in the first episode of popular drama series Minder in 1979 starring George Cole and Dennis Waterman and played a Swedish pop star in Bergerac, before having a role in the film The Hit (1984) with John Hurt and Terence Stamp.
After appearances in Birds of a Feather, thriller Framed and hard hitting crime drama The Knock, Regan starred in five episodes of The Bill before appearing as Harry's mother in all 4 series of children's drama series Harry and Cosh from 1999 to 2003.
She continues her career on both stage and screen, including Holby City, Doctors and Run for Your Wife, as well as appearing in several short films and commercials, and writing award-winning crime novels.