Richard WaughJay Whitaker
- 7 Episodes : 8 - 9 - 11 - 18 - 19 - 20 - 21
Kevin McNallyHarris Cochrane
- 6 Episodes : 1 - 2 - 3 - 4 - 10 - 21
Clark BackoAva
- 5 Episodes : 14 - 16 - 18 - 19 - 21
Geoffrey PiersonCornelius Moss
- 5 Episodes : 14 - 16 - 19 - 20 - 21
Nicholas MassouhMajid Nassar
- 5 Episodes : 3 - 5 - 6 - 7 - 8
Mark DeklinJack Bowman
- 5 Episodes : 15 - 16 - 17 - 18 - 21
Rob MorrowAbe Leonard
- 5 Episodes : 13 - 17 - 18 - 20 - 21
Terry SerpicoPatrick Lloyd
- 4 Episodes : 18 - 19 - 20 - 21
Peter OuterbridgeCharlie Langdon
- 4 Episodes : 1 - 10 - 13 - 14
Melanie ScrofanoLisa Jordan
- 4 Episodes : 6 - 7 - 8 - 10
Paulino NunesDirector Carrera
- 4 Episodes : 4 - 5 - 6 - 7
Raven DaudaYvette Atwood
- 3 Episodes : 7 - 12 - 13
Mercedes De La ZerdaNadia Espinosa
- 3 Episodes : 15 - 19 - 20
Matthew MacFadzeanTim Beck
- 3 Episodes : 7 - 9 - 18
Mariana KlavenoBrooke Mathison
- 3 Episodes : 8 - 12 - 15
Adrienne WilsonAmanda
- 2 Episodes : 10 - 11
Andrea RungeCaptain Betsy Kassabian
- 2 Episodes : 11 - 12
Annie ChenLily
- 2 Episodes : 16 - 18
Sophia WalkerOlivia Abram
- 2 Episodes : 17 - 20
Elana DunkelmanNatalie
- 2 Episodes : 9 - 10
Mykelti WilliamsonAdmiral Chernow
- 2 Episodes : 4 - 5
Lyric JusticeLuke Atwood
- 2 Episodes : 7 - 8
Daren A. HerbertAlvin Joyner
- 2 Episodes : 12 - 13
Jeff ClarkeCongressman Kevin George
- 2 Episodes : 9 - 10
Colin WoodellTyler Richmond
- 2 Episodes : 3 - 19
Michael GastonGovernor John Royce
- 2 Episodes : 2 - 4
Maria RicossaAnne Paulsen
- 2 Episodes : 7 - 14
Kearran GiovanniSenator Diana Hunter
- 1 Episode : 17
Christina TannousSenator Higuera
- 1 Episode : 16
Jeffrey R. SmithDr. Alan Enright
- 1 Episode : 10
Christina CollinsSandra
- 1 Episode : 15
Joanne BolandSarah Lassiter
- 1 Episode : 9
Michael RawleyMiller
- 1 Episode : 5
Arjay SmithNolan
- 1 Episode : 1
Darrin BakerDuncan
- 1 Episode : 4
Brent SextonGabriel Thompson
- 1 Episode : 9
Okiki KendallSenator Engram
- 1 Episode : 16
Daniel MaslanyJared Abbott
- 1 Episode : 8
Murray FurrowGovernor Mennuti
- 1 Episode : 6
John BourgeoisSenator Hazelton
- 1 Episode : 9
Romina D'UgoLucy Fernandez
- 1 Episode : 20
Vincent Rodriguez IIIOwen Saldua
- 1 Episode : 19
Michael TherriaultDr. Arnold
- 1 Episode : 8
Paula RiveraMaria Serrano
- 1 Episode : 4
Spencer MillerBrian Marcus
- 1 Episode : 19
Boyd BanksBarry Lenz
- 1 Episode : 19
Calvin DesautelsAgent Damashek
- 1 Episode : 12
Dan DuranReporter Joel Estevez
- 1 Episode : 20
Jocelyne ZuccoFrench Prime Minister Justine Massett
- 1 Episode : 20
Sonia Dhillon TullyBritish Prime Minister Aruna Mahajan
- 1 Episode : 20
Mark A. OwenGeneral Muñoz
- 1 Episode : 4
Brian PaulSenator O'Malley
- 1 Episode : 16
Zach SmaduIsaac Essaway
- 1 Episode : 4
Alison J. PalmerSenator Mary-Anne Louis
- 1 Episode : 16
Dylan WalshCommander Max Clarkson
- 1 Episode : 5
Dan LettWynbrandt
- 1 Episode : 2
Vieslav KrystyanSlovakian President Josef Kovacs
- 1 Episode : 20
Ruben Santiago-HudsonGeneral Contreras
- 1 Episode : 14
Morgan David JonesDan Pyne
- 1 Episode : 18
Jeff TeravainenBrad Weston
- 1 Episode : 7
Janaya StephensAmy Blakestone
- 1 Episode : 15
David FraserBriggs
- 1 Episode : 8
Shawn RobertsGrady Banks
- 1 Episode : 16
Kearran GiovanniSenator Diana Harris
- 1 Episode : 16
Cory LeeCallie Song
- 1 Episode : 13
Richard BekinsPresident Robert Richmond
- 1 Episode : 1
David NoroñaGovernor Rivera
- 1 Episode : 6
Vijay MehtaRonnie
- 1 Episode : 2
John NellesMassey
- 1 Episode : 2
Maureen LudfordAide
- 1 Episode : 3
Zorana SadiqAlyssa Abboud
- 1 Episode : 20
Beatriz YusteAmy Savalli
- 1 Episode : 15
Michael WacholtzGerald
- 1 Episode : 14
Erik PalladinoJeffrey Meyers
- 1 Episode : 7
Alex Mallari Jr.Chief Edward Marino
- 1 Episode : 5
Christine EstabrookGovernor Chris Nichols
- 1 Episode : 6
Elias ZarouAmbassador Fayad
- 1 Episode : 1
Vladimir Jon CubrtAmbassador Petrov
- 1 Episode : 7
Elizabeth VargasElizabeth Vargas
- 1 Episode : 3
Sandy Jobin-BevansGovernor Brownley
- 1 Episode : 6
Chuck ShamataSenator Charlie Krauss
- 1 Episode : 17
David RealeScotty Svenson
- 1 Episode : 13
Linda PurlJulia Rombauer
- 1 Episode : 17
Danny WaughHector Suarez
- 1 Episode : 5
Patrick GalliganSenator Walter Dunlap
- 1 Episode : 16
Scott WickwareLarry Hill
- 1 Episode : 15
Ben Lewis (XI)Carter
- 1 Episode : 4
David Alexander MillerBrian
- 1 Episode : 5
Guy BullerGerman Chancellor Jonas Grottke
- 1 Episode : 20
Michael BrownOllie Vega
- 1 Episode : 13
Grace Lynn KungCongresswoman Mae Yoshida
- 1 Episode : 15
Tyler Burton SmithCaleb
- 1 Episode : 1
Bill SmitrovichNate Butcher
- 1 Episode : 21
Alex QuijanoLawrence
- 1 Episode : 1
Brendan BeiserSurgeon
- 1 Episode : 11
