The soap star, 37, also admitted she had difficulty shaking off the wiggle and giggle of Dame Barbara s Carry On persona when playing her a second time, following 2017 s BBC biopic Babs.
The actress admitted she was scared to take on the actress iconic soap part in the one-off episode, after previously playing a younger version of Barbara herself in a BBC biopic.
BBC EastEnders shares image from special 1970s flashback episode about the Mitchells walesonline.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from walesonline.co.uk Daily Mail and Mail on Sunday newspapers.