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. She had a role in the stage play
Runts in London in 2016, in which she appeared alongside
Marisa Abela. She left drama school before officially graduating in order to film her scenes on location in Cardiff, Wales. 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. In May 2025, she was confirmed as returning as Sweetpea for the fourth series. 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. ==Filmography==