She also acted in Bride of Frankenstein (1935), The Last Outpost (1935), Show Boat (1936), The Prince and the Pauper (1937), The Story of Vernon & Irene Castle (1939), Bulldog Drummond's Secret Police (1939), Calling Dr. Kildare (1939), Pride and Prejudice (1940), Foreign Correspondent (1940), Now, Voyager (1942), The Canterville Ghost (1944), and The Secret Garden (1949).

[3] Her first break came while she was still in Scotland, when actor-manager Osmond Tearle heard of her ability and booked her to appear in various Shakesperian plays.

[3] She first appeared in an uncredited part in Waterloo Bridge (1931), before which she had a long and not very successful career as a theatrical actress.

Director James Whale needed someone to portray a centenarian and Dudgeon was the oldest actress he knew of, despite her being just 60 at the time.

[10] She featured in some other hit films of the following years, such as Camille (1936), Pride and Prejudice (1940) and a supporting role alongside Charles Laughton in The Canterville Ghost (1944).