How Old Was Lucy Hale as Robin’s Sister on How I Met Your Mother?

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How I Met Your Mother actress Lucy Hale was just one of several female powerhouse celebrities who hit the blue carpet at the 2015 Teen Choice Awards held at the Galen Center in Los Angeles.

Lucy Hale and Ashley Benson pose for photos at the 2015 Teen Choice AwardsLucy Hale and Ashley Benson pose for photos at the 2015 Teen Choice Awards held at the Galen Center in Los Angeles on August 16, 2015

In what episode of How I Met Your Mother is Robin’s sister?

She first appeared as Robin’s younger sister, Katie Scherbatsky, in “First Time in New York,” the 12th episode in the second season of the television series How I Met Your Mother.

It originally aired on January 8, 2007, when Lucy Hale was 17 years old. Born on June 14, 1989, in Memphis, Tennessee, she turned 18 on June 14, 2007.

Lucy Hale as Katie Scherbatsky on the American sitcom How I Met Your MotherLucy Hale as Katie Scherbatsky on the American sitcom How I Met Your Mother

7 years later, Lucy returned to the American sitcom in the episode “Vesuvius,” the nineteenth episode of the ninth season. She was 24 years old when it aired on March 3, 2014.

Lucy Hale made her first appearance on How I Met Your Mother in the episode First Time in New YorkLucy Hale made her first appearance on How I Met Your Mother in the episode First Time in New York

Lucy — who won Choice TV Drama Actress at the show — joined Britney Spears and Lea Michele at the ceremony.

Lucy Hale smiles with a super sleek, slicked-back hairstyle in front of a branded backdrop at the 2015 Teen Choice AwardsLucy Hale smiles with a super sleek, slicked-back hairstyle in front of a branded backdrop at the 2015 Teen Choice Awards

Rocking a super sleek, slicked-back hairstyle, the then 26-year-old Pretty Little Liars actress stepped out of her comfort zone and donned a black and blue minidress from the Julien Macdonald Fall 2015 collection.

Lucy Hale shows off the front and side view of her embroidered Julien Macdonald dressLucy Hale shows off the front and side view of her embroidered Julien Macdonald dress

Her floral embroidered dress featured a plunging v-neck held together with a mesh panel.

She styled the frock with a black Edie Parker clutch and showed off her small feet with a vampy pedicure in matching strappy sandals.

Lucy Hale's sexy feet in strappy black sandals and a matching vampy pedicureLucy Hale’s sexy feet in strappy black sandals and a matching vampy pedicure

How do you like Lucy’s sultry vibe and her strappy sandals?

Credit: WENN / Brian To / FayesVision