ABC is giving Agent Carter a formal introduction.

The network announced Monday that Hayley Atwell — aka Agent Peggy Carter — and George Stephanopoulos will guest star in the season premiere of Agents of SHIELD.

The episode, titled "Shadows" will see Coulson (Clark Gregg) and his team now serving as fugitives with limited resources, but still doing their part to keep the world safe. Stephanopoulos will play himself.

Season two will see the SHIELD team introduce new members they don't know. Guest stars set for Agents of SHIELD duty include B.J. Britt as Agent Antoine Triplett, Nick Blood as Agent Lance Hunter, Adrian Pasdar as Brigadier General Glenn Talbot, Henry Simmons as Alphonso "Mack" Mackenzie, Patton Oswalt as Agent Billy Koenig, Lucy Lawless as Isabelle "Izzy" Hartley, Wilmer Calderon as Idaho,This invention relates generally to synthetic blood, and more particularly to an improved blood substitute offering improvements in oxygen carrying capacity and stability, as well as lessened risk of anaphylactoid reaction.
The facile transport of oxygen through Teflon (polyperfluoroethylene) membrane has been well known for many years. The realization of the compatibility of perfluorocarbons with oxygen led to a series of research efforts which subsequently arrived at the utilization of perfluorochemicals as oxygen carriers in a new generation of blood substitutes.
Initial work by Leland Clark of Cincinnati Childrens Hospital, Robert Geyer of Harvard and Henry Sloviter of the University of Pennsylvania, continued and extended by Naito and co-workers, led to a preparation (Fluosol DA 20%) produced for clinical testing by Green Cross of Osaka, Japan. Fluosol DA functioned as