Apart from its engaging story and brooding cinematography, where Netflix's Mindhunter [1] really excels is with its stellar cast [2]. While we're personally obsessed with the spot-on casting of serial killer Ed Kemper [3], the entire ensemble is great. In particular, the actress who portrays Deborah "Debbie" Mitford — Canadian actress Hannah Gross — seems to be getting a lot of praise for her breakout role as a sociology student who begins a relationship with Jonathan Groff's FBI agent Holden Ford [4].

At just 25 years old, Gross already has a few notable indie films, several short films, and some theater experience on her résumé. While studying at New York University's Tisch School of the Arts, the actress directed a performance of A Streetcar Named Desire at the Stella Adler Studio of Acting. In 2013, she was cast in the indie drama I Used to Be Darker [5], which premiered at the Sundance Film Festival.

After acting in many other short films in the years following, Gross landed a role in Marjorie Prime, a slightly larger production. The thought-provoking film stars Lois Smith as Marjorie, an elderly woman connecting with a holographic projection of a younger version of her late husband, portrayed by Jon Hamm [6]. In it, Gross plays the younger version of Marjorie in flashbacks.

According to her IMDb page [7], Gross has not officially been cast in anything following Mindhunter, however, that will certainly change given her captivating (yet effortless) performance in the chilling series. What's more, a second season is already in the works [8], so you can probably expect to see Debbie again whenever that happens (as long as she and Holden patch things up, that is).