Hayley Catherine Rose Vivien Mills (born 18 April 1946) is an English actress. The daughter of Sir John Mills and Mary Hayley Bell, and younger sister of actress Juliet Mills, Mills began her acting career as a child and was hailed as a promising newcomer, winning the BAFTA Award for Most Promising Newcomer for her performance in the British crime drama film Tiger Bay (1959), the Academy Juvenile Award for Disney's Pollyanna (1960) and Golden Globe Award for New Star of the Year – Actress in 1961. During her early career, she appeared in six films for Walt Disney, including her dual role as twins Susan and Sharon in the Disney film The Parent Trap (1961). Her performance in Whistle Down the Wind (a 1961 adaptation of the novel written by her mother) saw Mills nominated for BAFTA Award for Best British Actress.

Filmography

• 2025Fackham Hall — Rose Davenport (voice)
• 2024Arthur's Whisky — Karen
• 2024Trap — Dr. Josephine Grant
• Compulsion — Connie
• 2021Last Train to Christmas — Mum
• The Wheel of Time — Gitara Moroso
• Pitching In — Iona
• Unforgotten — Lady Emma Hume
• 2013Angel in the House
• Death in Paradise — Nancy Martin
• 2011Foster — Mrs. Lange
• 2010Mandie and the Cherokee Treasure — Mary Elizabeth Taft
• Moving On — Madge
• Wild at Heart — Caroline Du Plessis
• 2005Stricken — Hildy
• 20042BPerfectlyHonest — Terri
• The Heaven and Earth Show
• Midsomer Murders — Lizzy Thornfield
• E! True Hollywood Story
• 1994A Troll in Central Park — Hilary (voice)
• 1990After Midnight — Sally Ryan
• 1989Back Home — Mrs. Peggy Dickinson
• 1989Parent Trap III — Susan Evers / Sharon Grand
• 1989Parent Trap: Hawaiian Honeymoon — Susan Wyatt / Sharon Grand
• 1988Appointment with Death — Miss Quinton
• Good Morning, Miss Bliss — Carrie Bliss
• 1986Disney's Greatest Lullabies Volume 2 — (archive footage)
• 1986The Parent Trap II — Susan Corey / Sharon Ferris
• Amazing Stories — Joan Simmons
• Murder, She Wrote — Cynthia Tate
• The Flame Trees of Thika — Tilly
• Tales of the Unexpected — Claire Hawksworth
• The Love Boat — Cheryl Tyson, Leila Stanhope, Dianne Tipton
• 1976What Changed Charley Farthing? — Jenny
• 1975Deadly Strangers — Belle Adams
• 1975The Kingfisher Caper — Tracy
• 1974Only a Scream Away — Samantha Miller
• Thriller — Samantha Miller
• 1972Endless Night — Ellie Thomsen
• 1971Mr. Forbush and the Penguins — Tara St. John Luke
• 1970Take a Girl Like You — Jenny Bunn
• 1968Twisted Nerve — Susan Harper
• 1967Africa: Texas Style! — Blonde Girl at Airport (uncredited)
• 1967Pretty Polly — Polly Barlow
• 1966Sky West and Crooked — Brydie White
• 1966The Daydreamer — The Little Mermaid (voice)
• 1966The Family Way — Jenny Piper
• 1966The Trouble with Angels — Mary Clancy
• 1965That Darn Cat! — Patti Randall
• 1965The Truth About Spring — Spring Tyler
• 1964The Chalk Garden — Laurel
• 1964The Moon-Spinners — Nikky Ferris
• 1963Summer Magic — Nancy Carey
• 1962In Search of the Castaways — Mary Grant
• 1961The Parent Trap — Susan Evers / Sharon McKendrick
• 1961Whistle Down the Wind — Kathy Bostock
• 1960Pollyanna — Pollyanna
• 1959Tiger Bay — Gillie
• The Wonderful World of Disney — Pollyanna

Appearances as themselves (17)

• 2015Pinewood: 80 Years of Movie Magic — Self - Interviewee
• 2014Richard Attenborough: A Life in Film — Self
• Celebrity Antiques Road Trip — Self - Participant
• 2009The Boys: The Sherman Brothers' Story — Self
• 2008The Age of Believing: The Disney Live Action Classics — Self
• 2004Toward the Unknown Region: Malcolm Arnold - A Story of Survival — Self
• 2002Pollyanna: The Making of a Masterpiece — Self
• 2002Recreating Pollyanna's America — Self
• 2000Sir John Mills' Moving Memories — Self
• 1989When We Were Young: Growing Up on the Silver Screen — Self
• 1988One More Audience with Dame Edna Everage — Self (uncredited)
• 1981Disney Animation: The Illusion of Life — Self - Host
• An Audience with... — Self
• The Danny Kaye Show — Self
• The Merv Griffin Show — Self
• The Oscars — Self
• What's My Line? — Self - Mystery Guest