Before joining the star-studded cast of NCIS: Los Angeles, Ashley appeared on TV series like Vice Principals, a comedy series created by Jody Hill and Danny McBride, and Distance, a show created by Alex Dobrenko. 

The Houston native had one of her first professional breakthroughs in a 2009 short film titled Adaline. She garnered a great deal of success with her portrayal of Elizabeth in Last Vegas, where she appeared alongside Robert De Niro, Morgan Freeman, and the likes. 

An avid dog lover, Ashley often takes it to Instagram to share heart-warming snaps of her pup, Willow. She also posts updates about her latest adventures in and around the house and meet-ups with friends. 

Source : https://www.distractify.com/p/who-plays-sydney-on-ncis-los-angeles