Katie Leung
Biography
Katie Leung (born August 8, 1987; pronounced [lœ:ŋ]) is a Scottish actress. She first gained fame for playing Cho Chang, Harry Potter's first love interest in the Harry Potter film series, and subsequently for her roles as Caitlyn Kiramman in the Netflix animated series Arcane and Ash in the Amazon Prime Video sci-fi series The Peripheral. Among British television audiences, Leung is known for her lead roles in the miniseries dramas One Child and Strangers and her supporting role in the police dramedy Annika.
Also Known As
Movie Appearances

Harry Potter and the Goblet of Fire
as Cho Chang
2005

Harry Potter and the Order of the Phoenix
as Cho Chang
2007

Harry Potter and the Half-Blood Prince
as Cho Chang
2009

Harry Potter and the Deathly Hallows: Part 1
as Cho Chang
2010

Harry Potter and the Deathly Hallows: Part 2
as Cho Chang
2011

The Foreigner
as Fan
2017

T2 Trainspotting
as Nurse
2017

Leading Lady Parts
as Assistant
2018

Locked Down
as Natasha
2021

The Promise
as The Thief
2021

The Secret Letters of Mary Queen of Scots
as Narrator
2025
TV Appearances

The Nest
as Eleanor
2020

The Peripheral
as Ash
2022

Agatha Christie's Poirot
as Hsui Tai
1989

The Chemistry of Death
as Maggie Cassidy
2023

Annika
as DC Blair Ferguson
2021

Nightsleeper
as Rachel Li
2024

One Child
as Mei
2014

Father Brown
as Jia-Li Gerard
2013

Arcane
as Caitlyn (voice)
2021

The Wheel of Time
as Yasicca
2021

Run
as Ying
2013

Strangers
as Lau Chen
2018
