Katie Liu Leung was born in Scotland to Peter and Kar Wai Li Leung, who are now divorced. She lives at home with her father, two brothers and one sister. She is currently attending one of Scotland's most prestigious private schools, Hamilton College.

Katie's father saw an advertisement for a casting call and suggested Katie try out. Katie objected when she saw the length of the line at the casting auditions and said she'd rather go shopping. She waited for a total of 4 hours before she got in. The audition for her only took 5 minutes and the next two weeks, she got called in for a workshop and from then on, she got the part as Cho Chang.
Beat out over 3,000 girls to make her debut as "Cho Chang" in Harry Potter and the Goblet of Fire. Parents are Kar Wai Li & Peter Leung (divorced) Attended Hamilton College, a prestigious £5000-a-year private school in located in Hamilton, Scotland. Since finishing school in May 2005, Katie wants to either study art at university or embark on an acting career. Author J.K. Rowling insisted that the actress to play "Cho" had to be a complete unknown. According to her father, she had never been in a school play and went for the audition "on a whim".. Her dad runs a successful restaurant in Glasgow & a thriving Chinese food wholesale business Lives in a £400,000 house Lives with her father, two brothers and a sister in an exclusive district of Motherwell, Scotland. She achieved pass results in English, maths, chemistry, biology and art in her Highers (Scottish high school exams). Can speak Cantonese (Chinese dialect) Parents are originally from Hong Kong [September 2005] She plans to defer going to university so she can continue to play Cho Chang in the 'Harry Potter' films. Has two brothers (one named Jonathan) and a younger sister (Violet) Values her brother, Jonathan's, opinions most If she could be given any magical power, Katie says she would like to be able to read boys' minds. Her favorite Chinese actors are Aaron Kwok and Stephen Chow. Katie has a younger cousin called Sophie Leung who also goes to Hamilton College. Sophie will be going into her 6th year in Primary School.