Hayley Atwell reprises her role as Carter from the film series, and is joined by regular cast members James D'Arcy, Chad Michael Murray, and Enver Gjokaj.
Whitney Frost absorbs the Zero Matter released from Jason Wilkes, who is rescued by Peggy Carter, as Howard Stark returns and aids in their escape.
Jack Thompson finds in Vernon Masters's possession a supposedly incriminating file on Carter and a secret Council of Nine key.
[1] In February 2016, Marvel revealed that main cast members Hayley Atwell, James D'Arcy, Enver Gjokaj, Wynn Everett, Reggie Austin, and Chad Michael Murray would star as Peggy Carter, Edwin Jarvis, Daniel Sousa, Whitney Frost, Jason Wilkes, and Jack Thompson, respectively.
[1] It was also revealed that the guest cast for the episode would include Currie Graham as Calvin Chadwick, Lotte Verbeek as Ana Jarvis, Lesley Boone as Rose Roberts, Dominic Cooper as Howard Stark, Ken Marino as Joseph Manfredi, Chris Coppola as Hank, Tina D'Marco as Nonna Manfredi, Matt Braunger as Dr. Aloysius Samberly and Malcolm Brock Jones as orderly.