Hern voiced the character Niamh in two
Torchwood audio stories by
Big Finish Productions. She made her television debut with a guest appearance in a 2020 episode of
The Twilight Zone. The following year, she had her first major role in the first series of the
BBC One drama
The Pact as Tish. In 2022, Hern made her feature film debut as Mae in the
Netflix film
Enola Holmes 2. She also appeared in the sixth series of
Peaky Blinders as Mary Bone. Hern portrayed Princess Bess, based on
Elizabeth I, in the
Amazon Prime alternate history fantasy series
My Lady Jane. ==Filmography==