Watling is also well known for starring in the films Take Me High (1973) with Cliff Richard and That'll Be the Day (1973) with David Essex as well as playing Julie Robertson in The Newcomers (1969) and Norma Baker in Danger UXB (1979) on television.

[11] According to the short BBC Video documentary The Dalek Factor about the making of the story, released in September 2021 as part of the animated restoration of the serial, Denise Buckley was cast in the role of Victoria Waterfield by director Derek Martinus.

When Collins confirmed she did not want to join the regular cast, it was decided to introduce Victoria as the new companion and Denise Buckley was released, but paid in full, with Watling replacing her as a more suitable actress for the continuing role.

[12] Watling played Victoria in Doctor Who from 1967 to 1968,[13] though owing to the BBC's wiping policy of the time, The Tomb of the Cybermen (1967) and The Enemy of the World (1967–1968) are the only serials in which she appeared that still exist in their entirety.

[16] In her later years, Watling lived with her husband in Thorpe-le-Soken, Essex where she was a well known figure in the village and regularly used her acting experience by directing the local pantomimes.