Cadell was born in Budapest, Hungary and later attended school in Finchley, England. She made a number of British television appearances in the 1970s and also appeared in the July 1975 (Volume 10 no 7) issue of men's magazine Mayfair. Her film credits include The Ups and Downs of a Handyman (1975), The Golden Lady (1979), Spaced Out (1979), Mel Brooks’ History of the World: Part I (1981), Smokey and the Bandit Part III (1983), the German-made Jungle Warriors (1984), the Arnold Schwarzenegger action flick Commando (1985), 3 of Andy Sidaris’ Triple B thrillers, and also episodes of Mickey Spillane's Mike Hammer (1984), Arthur Hailey's Hotel (1984), Dallas (1984) and The Love Boat (1985) and Perfect Strangers (1986 - on the second episode of season one, titled "Picture This").
Ava Cadell has been married to Los Angeles Criminal defense attorney Peter L. Knecht since 1992. She says she is a widow.
As an extension of her presence in the sex therapy field, Cadell has founded Loveology University—the "on-line university of love coaching"—through which she imparts her knowledge to motivated students who will follow her career path to become "Loveologists".
