Guest Stars Lyndie Greenwood as Dr. Elvi Okoye Burn Gorman as Adolphus Murtry Jess Salgueiro as Chandra Wei Rosa Gilmore as Dr. Lucia Mazur Kris Holden-Ried as Coop Co Starring Michael Benyaer as Arjun Avasarala Zach Smadu as Dr. Fayez Sarkis Steven McCarthy as Jakob Patti Kim as Carol Chiwewe Lily Gao as Nancy Gao Nabeel El Khafif as Scotty Michael Brown as UNN Lieutenant Lipson Vicki Kim as Avasarala's Aide #2 Christian Potenza as Mason Bradley Gordon as Kellan Madison Walsh as Campaign Manager Ryan Hollyman as UN Admiral Franck Justin Michael Carriere as Angeletti Ryan Turner as RCE Guard Eugene Jarret Wright as RCE Guard Liam Adriana Crivici as RCE Guard #3 Bola Aiyeola as Older Voter / J. Renaud Daniel Chichagov as Young Voter #2 / O. Maré Daniyah Ysrayl as Young Voter #1 / M. Segal Deney Forrest as Secret Service Agent Tim Masterson as George Cantor