Alycia Jasmin Debnam-Carey was born on July 20, 1993. She is an actress from Australia. She grew up in Sydney, and graduated from Newtown High School of the Performing Arts in 2011 where she was a percussionist. In 2010, in partnership with the Berlin Philharmonic, she and around 40 other musicians worked together, composed a piece together in a two week program. In her last year of school, Debnam-Carey took her HSC exams and managed to get top band in six of her courses. Debnam-Carey also received the Premier's award for receiving 90's in 6 subjects.

Alycia has been acting since she was eight. She starred in a short feature called Martha's New Coat (2003). She has also appeared in Dance Academy (2010), McLeod's Daughters (2001), among other television productions.

She began to make her mark in Hollywood when she traveled to the U.S. for the first time at age 18. She starred as the youngest cast member in Next Stop Hollywood (2013), a six-part documentary that followed six Australian actors as they competed for roles during the U.S. TV pilot season. Her mom, Leone Carey, is a television writer, and she accompanied Alycia on her journey. The documentary aired in 2013 on ABC1 in Australia.

Alycia has since starred in major film productions, such as Fırtınanın İçinde (2014). In addition, she has had large roles in many Australian short films, and in 2013 landed the lead role in the TV movie Where the Devil Hides (2014). She starred in the unaired AMC pilot Galyntine (2014), but unfortunately the series was not picked up.

In 2014 Alycia began to guest-star in the second season of The CW's TV show The 100 (2014) as Commander Lexa. During San Diego Comic Con in July of 2015 it was announced that Lexa and Alycia would indeed return. On December 1, 2014, it was announced that she had been cast as Alicia (originally named Ashley), one of the lead roles, in the AMC series Fear the Walking Dead (2015), the official companion series and prequel to The Walking Dead (2010).