She is known for playing the role of Zondra in the television series Chuck, and Isabel Zambada[1][2] in the procedural drama The Finder.

[3] She also starred in the 2011 American horror film Quarantine 2: Terminal, portrayed Louise Leonard in the supernatural drama series 666 Park Avenue (2012–2013), played Talia Del Campo in NCIS: Los Angeles, and was a regular on AMC's television series Fear the Walking Dead from 2015 to 2017.

[6] Mason started her career as Mercedes Masöhn on television called the Guyattwith a minor one-episode role in the daytime soap opera One Life to Live in 2005; she returned to the series for two episodes in 2006 as the character Neery.

Marshal Isabel Zambada, the romantic interest of title character Walter Sherman (Geoff Stults).

Both she and Maddie Hasson filled the void left by the departure of Saffron Burrows,[7] the female lead in the series' backdoor pilot which was the 19th episode of Season 6 of Bones.

[9][10] In the spring of 2014, Mason debuted her role of DEA Special Agent Talia Del Campo on the CBS series NCIS: Los Angeles, appearing in seven episodes from 2014 to 2022.