Massa also portrays Reese, an SSR agent on Marvel's Agent Carter. Enver Gjokaj also stars in the show as Daniel Sousa.
Massa has assisted with the stunts on multiple shows developed by Joss Whedon. He was a stunt double for Captain Hammer in Dr. Horrible's Sing-Along Blog, and most notably a stunt double for David Boreanaz on Angel. He was also involved in the stunts in Firefly.