[3] During her eight year at school Mimmack's teacher described the destruction of the rainforest, which had a big effect on her.
When she was 19 she moved to a narrowboat moored in Hackney marshes, partly because of environmental reasons.
[5] Furthermore, she could be seen in the mini series Mayday, as the May queen Hattie, who disappeared when she was cycling towards the May Day parade.
[10] In the British thriller Level Up she plays Anna who has been kidnapped by masked thugs.
[11] In 2015, she got the role of Laura Campbell in Home Fires, who has an affair with a married military officer.