Lyndsy Fonseca

Lyndsy Marie Fonseca was born on January 7, 1987, in Oakland, California, United States, the daughter of Lima Lynn (née Bergmann) and James Victor Fonseca. She has described her ethnicity as "half Portuguese". Her paternal grandmother was an artist who made quilts, doll clothes, and stained glass. Fonseca's parents married in 1985 and divorced when she was two years old. Lima, a psychologist, later married attorney Reid Dworkin, through whom Fonseca has a half-sister. Fonseca completed a course at Barbizon Modeling and Acting School in San Francisco and relocated to Los Angeles at age 12. She soon made her screen debut as Colleen Connelly-Carlton on the soap opera The Young and the Restless.In 2005, Fonseca played a recurring role as Ted Mosby's future daughter on How I Met Your Mother and as Donna on HBO's Big Love. She starred in the 2005 Hallmark TV film Ordinary Miracles, as a 16-year-old juvenile delinquent who goes to live with a judge (Jaclyn Smith). In late 2007, Fonseca played Dawn in the film Remember the Daze.

She joined the cast of ABC's Desperate Housewives in the series' fourth season as Dylan Mayfair, the daughter of Katherine Mayfair (Dana Delany), a character moving onto Wisteria Lane. In 2008, she was nominated for the Actor award at the Screen Actors Guild Awards for Outstanding Performance by an Ensemble in a Comedy Series for Desperate Housewives, shared with the cast.

Fonseca played Katie Deauxma in the 2010 superhero film Kick-Ass, followed by appearances in three more American films in 2010, including Hot Tub Time Machine. In 2010, Fonseca was cast in a starring role in the CW television series Nikita as Alex, a new recruit, a role she played throughout the series' four seasons. During its run, the Nikita cast included her Kick-Ass co-star Xander Berkeley and her future husband, co-star Noah Bean.

Fonseca starred in the 2021 Disney+ series Turner & Hooch, a remake of the 1989 film of the same name.