Miriam Petche

Petche was born and raised in Brighton, East Sussex.^[1] Her father works as an editor and her mother works in education. She has a sister. She studied acting at the Guildhall School of Music & Drama in London.^[2][3]

A child actress, Petche had her first acting role at the age of ten years-old in the BBC Two show Vexed. She went on to appear in children's television series The Worst Witch.^[2][4] She had a role in the stage play Runts in London in 2016, in which she appeared alongside Marisa Abela.^[3]

She was still studying at drama school in London when she was cast in the role of Sweetpea Golightly, a trading and sales trainee at financial institution Pierpoint & Co, in the third series of critically-acclaimed HBO Max and BBC One drama series Industry in which she appeared alongside Abela and Harry Lawtey, amongst others.^[5][6][7] She left drama school before officially graduating in order to film her scenes on location in Cardiff, Wales.^[8][3] Her character is ambitious with a strong work ethic and was in-part inspired by British influencer Molly-Mae Hague. She was described by Collider as the "stealth MVP" of the third series.^[9] In May 2025, she was confirmed as returning as Sweetpea for the fourth series.^[10]

In August 2025, she was cast alongside Daniel Mays and Aimee-Ffion Edwards in British true crime drama Believe Me, written by Jeff Pope for ITVX.^[11]