Lindsay Kay Hayward to Guest Star in 'Grey's Anatomy'

Lindsay Kay Hayward at the 5th Annual Indie Series Awards.

The world's tallest actress, Lindsay Kay Hayward, will be guest-starring in an upcoming episode of Grey's Anatomy.

At six feet nine inches tall, Hayward was one of the four stars of TLC's fascinating My Giant Life this summer. On Tuesday night, the women all got together for a "Big Updates" special and Hayward revealed she had been cast for a role on Grey's.

"I have Marfan disease, the role that I play," Hayward revealed. "She's a seven feet two [inch] woman but she thinks she's six [feet] six [inches]. Usually I play an overly aggressive fighter type, but it gets to the insight of who actually are as uniquely tall women."

The actress and former wrestler is the Guinness World Record holder for the Tallest Actress in a Leading Role. She gets her height from her father, who she recently reunited with for the first time since she was 11-years-old during an episode of My Giant Life.

Hayward appears on the October 1 episode of Grey's Anatomy.

'My Giant Life' Premieres July 14 on TLC

Lindsay Kay Hayward at the 5th Annual Indie Series Awards.

Being extraordinarily tall will certainly help anyone stand out, but for the four women in TLC’s new five-part series, My Giant Life, their height is the only thing people seem to notice. Premiering on TLC Tuesday, July 14th at 10 p.m. ET/PT, viewers step into the shoes of women who are seemingly too tall and lofty for the average-sized world, standing at six feet six inches and above. They are faced with challenges every day – some because their extreme height makes performing seemingly mundane tasks like loading the dishwasher and getting into a car extremely difficult and others because the eyes of society are not as friendly to women of their stature. As a young lady that is a foot taller than the average female, life is anything but easy! From dating difficulties to simply going to the grocery store without stares, the stories in each episode get right to the heart of what it means to live life blessed with an extra foot or more.

Meet the women of My Giant Life:

COLLEEN a.k.a COCO – San Diego

At six feet six inches tall, Colleen is not an average single gal playing the field. The 36-year-old, former pro-volleyball player is on the hunt for a man – someone between Mr. Right and Mr. Right Now – with the assistance of her best friends, Chris and Michael. She also faces the struggles of moving home to San Diego, settling into her new apartment, and tricking it out with the “tall hacks” that she uses to customize her space.

HALEIGH – Huntington Beach, California

23-year-old Haleigh stands at six feet seven inches tall and has a world of possibilities at her fingertips: a professional volleyball career that will take her around the globe, a master’s degree, and all the promise that comes from being young and talented. Her much shorter, 32-year-old boyfriend, Bryan, is ready to settle down and have a handful of kids, but Haleigh’s father is worried that he’s going to slow his daughter down.

LINDSAY – Los Angeles

Statuesque and striving to make a name for herself, Lindsay stands out from any crowd at six feet nine inches tall. The actress and former wrestler is the Guinness World Record holder for the Tallest Actress in a Leading Role. She gets her height from her father, but she hasn’t seen him since she was 11-years-old. Ready to put the demons of her past to rest and move on, Lindsay is on a quest to locate her father and ask him why he left her all those years ago.

NANCY – Cypress, Texas

At a staggering six feet nine inches tall, Nancy is anything but an average American high school student. She is going through the rites of passage of being a teenage girl: learning to drive, finding a date to prom and then selecting the perfect dress, but none of those are easy when you’re seventeen and so much taller than your classmates. Nancy learns how to rise to the challenge of being exceptional as she figures out how to navigate life as a rising basketball superstar.

My Giant Life is produced by Workaholic Productions for TLC.