This interview contains spoilers from all six episodes of "Zero Day," now streaming on Netflix. Lizzy Caplan always knew that her character, Congresswoman and former First Daughter Alexandra Mullen, was behind the catastrophic cyberattack that incited the existential and moral panic that runs through "Zero Day.

For Lizzy Caplan, joining Netflix's "Zero Day" was an easy decision to make, citing Robert De Niro's involvement, as well as the "solid" credentials of co-creators Eric Newman, Noah Oppenheim and Michael Schmidt.

Angela Bassett, Joan Allen, Connie Britton, Jesse Plemons and Lizzy Caplan co-star in a series about politicians trying to find answers after a deadly cyberattack.

Zero Day on Netflix, starring Robert De Niro, took the audience by surprise with its twisted finale. In the thriller series, De Niro is cast as former President George Mullen while Lizzy Caplan plays the role of Alexandra Mullen,

I loved those scenes,” Lizzy Caplan told DECIDER. “We knew from very early on that there was a rich history that we wanted to convey.” That history includes Alex’s deceased brother, Nick (Jackson Eick).

A timely drama about a fictional crisis PR executive played by Lizzy Caplan has hit the marketplace, landing offers from Hulu, Netflix, Amazon & more.

We've taken Angela, Lizzy, and Dan's projects and written the WOST possible descriptions about them - think they can guess what they are?! Zero Day is now streaming on Netflix

Lizzy Caplan teased that she gave legendary actor Robert De Niro, 81, acting advice on the set of their new miniseries “Zero Day.” “Yeah, I told him how to do a few things,” the actress, 42, jokingly told Page Six at the New York premiere of the new Netflix show Tuesday.