All 96 actors in both Blindspot and Madam Secretary
96 actors have appeared in both Blindspot and Madam Secretary, across 220 episodes. The most-credited is Michael Gaston, Thomas Carter in Blindspot and CIA Director Hugh Haymond in Madam Secretary.
| Actor | In Blindspot | In Madam Secretary | Eps | Eps |
|---|---|---|---|---|
| Michael Gaston | Thomas Carter | CIA Director Hugh Haymond | 7 | 5 |
| Brian O'Neill | Coach Michael Jones | Navy Admiral | 5 | 1 |
| Reshma Shetty | Megan Butani | Dr. Nimmi Bahri | 5 | 1 |
| Kenya Brome | Agent Singha | Keira Peters | 1 | 7 |
| Eisa Davis | Alexandra Harrison | Jane Smith | 4 | 1 |
| Amanda Warren | Iris Bricklemyer | Olivia Mason | 1 | 6 |
| Sarita Choudhury | Sofia Varma | Prime Minister Jaya Verma | 5 | 2 |
| Linda Powell | Colonel Ferguson | FBI Director Amelia Banks | 1 | 4 |
| Jason Kravits | Doctor | Senator James Parisi | 1 | 2 |
| Jennifer Ikeda | Julliet Cheng | Immigration Officer | 3 | 1 |
| Usman Ally | Hakim | Zahed Javani | 1 | 3 |
| Angela Gots | Greta Smalls | Maria Ostrov | 1 | 4 |
| Alex Morf | Surjik Fells | Perry Thomas | 1 | 4 |
| Cindy Cheung | Dr. Kerry Coleman | Dr. Cary | 2 | 1 |
| David Furr | Agent Joshua Boyd | Agent Dan Santangelo | 1 | 2 |
| Joey Parsons | Scientist | Reporter #2, Joey Parsons, Reporter # 1 | 1 | 4 |
| Cotter Smith | General | Darren Hahn | 1 | 2 |
| Lee Tergesen | Patrick O'Malley | Governor Richard Barker | 1 | 2 |
| Raymond Neil Hernandez | Truck Driver | Secret Service Agent | 1 | 2 |
| Teddy Cañez | Boss Guard | Mexican Ambassador Rafael Lopez | 1 | 2 |
| Colby Minifie | Ginny Kelling | Bella Rossi | 1 | 1 |
| Debra Monk | C/O Margaret Powers | Mary Lou Boris | 1 | 1 |
| Jeremy Burnett | Anthony | Marine #2 | 1 | 1 |
| David Vadim | Konstantin Valenov | Ukrainian Foreign Minister Luka Melnik | 1 | 2 |
| Dennis Boutsikaris | Lucas Nash | Gary Coomer | 2 | 1 |
| Mike Masters | Dennis | Harley Johnson | 2 | 1 |
| Sofiya Akilova | Doctor Lewin | Olga Gorev | 2 | 2 |
| Ayman Samman | Dodi Khalil | Hamid Nasser, Leader | 1 | 2 |
| Chukwudi Iwuji | Oscar's Associate | Hadi Bangote | 1 | 1 |
| Jennifer Van Dyck | Dr. Nancy Williams | Cecilia Pedilla | 1 | 1 |
| Jim True-Frost | John Saya | Pastor Eli Bragg | 1 | 1 |
| Kyle Vincent Terry | Zico Faulhaber | Soldier | 1 | 1 |
| Laith Nakli | Zahir | Foreign Minister Kasib Hajar | 1 | 1 |
| Lisa Emery | Linda Weller | Maggie Brixton | 1 | 1 |
| Priscilla Lopez | Sra. Mendoza | Esmerelda | 1 | 1 |
| Pun Bandhu | Panit | Sud | 1 | 1 |
| Rafael Sardina | Jose | Officer Fuller | 1 | 1 |
| Scott Lindley | Young Weller | Ethan Cole | 2 | 1 |
| William Ragsdale | Russell Franklin | Peter Gunderson | 1 | 1 |
| Ed Moran | Robert Kingston | CIA Interrogator #1 | 1 | 1 |
| Jessica Hecht | Dr. Margaret Palmeri | Julia MacDonald | 1 | 1 |
| Jojo Gonzalez | Older Cop | General Ramon Purisma | 1 | 1 |
| Karen Pittman | Elizabeth Gubara | Taylor Wilson | 1 | 1 |
| Neil Hellegers | Winston Pear | Norwegian Foreign Minister Klevan | 1 | 1 |
| Paul Calderón | Drill Instructor | Foreign Minister Albert Rojas | 1 | 1 |
| Robert Eli | Major Arthur Gibson | Young Conrad Dalton | 1 | 1 |
| Rosa Arredondo | Camila Solis | Valeria Castillo | 1 | 1 |
| Sakina Jaffrey | Dr. Susan Albright | Foreign Minister Chondita Samant | 1 | 1 |
| Sheila Tapia | Melissa Coto | Senator Linda Furey | 1 | 1 |
| Terence Archie | Uniform Officer | Team Leader | 1 | 1 |
| Tim Guinee | Boris Solokov/Jason Stack | Paul Wellington | 1 | 1 |
| Victor Joel Ortiz | Head Gunman | JSOC Leader | 1 | 1 |
| Danny Garcia | Mike | Bartender | 1 | 1 |
| Frankie J. Alvarez | Julian Milliken | Zach | 1 | 1 |
| Grace Rex | Kristy | Katelyn King | 1 | 1 |
| Jakob Von Eichel | Kazahrusian Thug Leader | Soldier | 1 | 1 |
| Jamie Jackson | Roman | Colonel Frederic McPherson | 1 | 1 |
| Joseph Melendez | Luther VanLax | Nicaraguan President Mateo Sandino, Jr. | 1 | 1 |
| Lawrence Ballard | Besuited Man | Officer Miller | 2 | 1 |
| Roman Roytberg | Ukrainian Buyer | Interrogator #1 | 1 | 1 |
| Royce Johnson | Sheriff Keith Hannon | Buddy | 1 | 1 |
| Ryan Quinn | Ronnie Delvecchio | Bailiff | 1 | 1 |
| Sanjit De Silva | Sanjay Bonthala | Ben Hajianpour | 1 | 1 |
| Adrian Alvarado | Justin Trimble | Spec Ops # 1 | 1 | 1 |
| Alexander Chaplin | Garret Young | Chad Sorenson | 1 | 1 |
| Amelia Workman | Jill | Jogging Mom | 1 | 1 |
| DeShawn Harold Mitchell | Danny | Special Ops Soldier | 1 | 1 |
| Hubert Point-Du Jour | Akol | Dany Victor | 1 | 1 |
| Kadia Saraf | Hostage 2 | Interviewer | 1 | 1 |
| Misha Kuznetsov | Niko Popov | President Nuri Lakoba | 1 | 1 |
| Nathan James | Hospital Cop | FBI Agent Jensen Brock | 1 | 1 |
| Sathya Sridharan | Nikhil Thakker | NSA Tech | 1 | 1 |
| Tony Naumovski | Ilya Mikhailov | Aleksandar Leko | 1 | 1 |
| Victor Slezak | Gen. Mark Sheridan | Prime Minister Vlad Diacov | 1 | 1 |
| Anthony Aguilar | PNP Guard | Gang Member # 1 | 1 | 1 |
| Bianca LaVerne Jones | Nicole Summers | Maya | 1 | 1 |
| Carey Van Driest | UN Head of Security Dana Coriano | Gisele Durand | 1 | 1 |
| Dan Ziskie | Peter Warren | Dr. Daniel Reese | 1 | 1 |
| David Shih | Diamond Broker | Yonten Bhuti | 1 | 1 |
| Eric Elizaga | Todd | Guard # 1 | 1 | 1 |
| Eva Kaminsky | Maria Garin | Jenny Bach | 1 | 1 |
| Mike McGowan | Quinn Donahue | Trevor Vance | 1 | 1 |
| Nancy Lemenager | Chelsea Chalgren | Natalie Barker | 1 | 1 |
| Tom White | Secret Service Agent | Brent, Reporter # 2 | 1 | 2 |
| Maceo Oliver | IT Tech | Deputy Assistant Bruce | 1 | 1 |
| Rachel Christopher | US Attorney Grant | Director | 1 | 1 |
| Robert Manning, Jr. | Jane's Guard #1 | Colonel Farris | 1 | 1 |
| Bob Ari | Earl | Trevor Bentley | 1 | 1 |
| Kenneth Tigar | Sean Clark | Dr. Stuart Bachman | 1 | 1 |
| R. Ward Duffy | Kevin Loewe | Samuel Singer | 1 | 1 |
| Rasha Zamamiri | Female Lab Tech | Samira | 1 | 1 |
| Shelley Thomas-Harts | Ingrid | Reporter # 2 | 1 | 1 |
| William Connell | Caruso | Brandon Wells | 1 | 1 |
| Raul I. Torres | Hostage 3 | Mexican Marine | 1 | 1 |
| Smitty Chai | Thai Refugee | Officer | 1 | 1 |
| Toussaint Jeanlouis | Officer Bronsen | Nelson | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.