She started her life as a model before becoming an actress with
the Rank Organisation. She appeared in bit parts in a few films before starring in the 1956 film
Lost. After departing Rank, she continued acting, appearing in a few episodes of television shows, including
The Saint and
Emergency – Ward 10. In 1960 she appeared in the third episode of
Danger Man entitled "Josetta" in which she was the main character opposite Patrick McGoohan. In 1966 Arnall starred in
The Saint (S5:E12 'Locate and Destroy') as Ingrid Coleman, the wife of a Mine Owner in South America who is also a Nazi war criminal. ==Selected filmography==