All 68 actors in both 30 Rock and Person of Interest
68 actors have appeared in both 30 Rock and Person of Interest, across 241 episodes. The most-credited is Boris McGiver, Patrick in 30 Rock and Agent Robert N. Hersh in Person of Interest.
| Actor | In 30 Rock | In Person of Interest | Eps | Eps |
|---|---|---|---|---|
| Boris McGiver | Patrick | Agent Robert N. Hersh | 1 | 13 |
| Elizabeth Marvel | Emily | Alicia Corwin | 1 | 7 |
| Michael Mulheren | Gordan Beckman | Captain Artie Lynch | 1 | 3 |
| Scott Adsit | Dicky, Peter Horn | Max Greene | 2 | 1 |
| April L. Hernandez | Vikki | Andrea Gutierrez | 1 | 1 |
| De'Adre Aziza | Trene | Shari | 1 | 1 |
| Laila Robins | Gloria Baird | Anja Kohl | 1 | 1 |
| Darien Sills-Evans | Man in the Bronx | CIA Agent Tyrell Evans | 1 | 3 |
| Maechi Aharanwa | Keisha | Gate Agent, Waitress | 2 | 2 |
| Ned Eisenberg | Marty | Detective Joseph Soriano | 1 | 2 |
| Eric Ruffin | Young Tracy | Jacob King | 1 | 1 |
| Heléne Yorke | Jessica | Lauren Buchanan | 1 | 1 |
| Michael Cyril Creighton | Salesman | Russell | 1 | 1 |
| Peggy J. Scott | Cheryl | Mrs. Fuentes | 1 | 1 |
| Scott Bryce | Dave, Michael Templeton | Adnan Petrosian | 2 | 1 |
| Brit Whittle | Man #1 | Ben Haas | 1 | 1 |
| Jessica Leccia | Maria | Linda Khan | 1 | 1 |
| Karen Pittman | Nurse | Tracey Phillips | 1 | 1 |
| Matt Lauria | Winthrop | Adam Saunders | 1 | 1 |
| Taylor Black | Archeria | Gabi | 1 | 1 |
| Timothy Adams | NY Post Guy | Baseball Cap Man | 1 | 1 |
| Victor Cruz | Grip | Mr. Castillo | 1 | 1 |
| Andrew Polk | Executive #6, Steven Spielberger | University Dept. Chair | 2 | 1 |
| Erik Jensen | Cjokula | Walter Dang | 2 | 1 |
| Jimmy Palumbo | Enzo, Matt Dowd | Detective | 2 | 1 |
| Andrew Stewart-Jones | Gabe | Doyle | 1 | 1 |
| Jabari Gray | Executive #5 | Murrow | 1 | 1 |
| Lynda Gravatt | Martha | Celia Beecher | 1 | 1 |
| Peter Lewis | Bobby | JD Carrick | 1 | 1 |
| Reg E. Cathey | Rutherford Rice | Davidson | 1 | 1 |
| Brian Berrebbi | Dave, Reynolds | Juror With Cellphone | 2 | 1 |
| Alex Cranmer | Employee | Chris Scollard | 1 | 1 |
| Christopher Stadulis | The Cop | Barrett | 1 | 1 |
| David Alan Basche | Alan | Wayne Kruger | 1 | 1 |
| Ed Moran | Clark | Sergeant Harris | 1 | 1 |
| Kelly Coffield Park | Aunt Linda | Detective Marianne Nichols | 1 | 1 |
| Remy Auberjonois | Tyler Brody | Jimmy Calhoun | 1 | 1 |
| Rick Zahn | Judge | Police Officer | 1 | 1 |
| William Jackson Harper | Rioter | Stroble | 1 | 1 |
| Brian Murray | Jack's Dad | Robert Keller | 1 | 1 |
| James Saito | Chef | Glen | 1 | 1 |
| Jamie Choi | Culture Girlfriend | High Roller Dealer | 1 | 1 |
| Joe Coots | Blue Collar Guy | Officer Jack Tanner | 1 | 1 |
| John Cenatiempo | Crew Guy | Gage | 1 | 1 |
| Karolina Kurkova | Karolina Kurkova | Karolina Kurkova | 1 | 1 |
| Mark Zimmerman | Lawyer | Richard Eckhart | 1 | 1 |
| Michael Carlsen | Construction Worker | Uni | 1 | 1 |
| Paul Juhn | Mr. Hwang | Richard Grant | 1 | 1 |
| Bill Cwikowski | Male Nurse | Fat Frank | 1 | 1 |
| Jaiden Kaine | Angie's Friend | Federal Agent | 1 | 1 |
| Madison McKinley | Dutch Cousin | Candi | 1 | 1 |
| Matthew Stocke | Snapple Man | Courier | 1 | 1 |
| Tyler Evans | Wall Street Guy | Detective Mackenna | 1 | 1 |
| Fajer Al-Kaisi | Hotdog Vendor | Youssef's Friend | 1 | 1 |
| Gregory Wooddell | Mike | Eric Mathers | 1 | 1 |
| Jun Naito | Japanese Lawyer | Murakami | 1 | 1 |
| Rebecca Darke | Mrs. Gerstein | Dying Lady | 1 | 1 |
| Tom Patrick Stephens | Theatergoer | Uni | 1 | 1 |
| Carson Elrod | Travis | Todd | 1 | 1 |
| Jean Brassard | Admiral | Claude Bertrand | 1 | 1 |
| Michael Devine | Tom Delaye Look-A-Like | Cop | 1 | 1 |
| Ramsey Faragallah | Sheik | Morgue Tech | 1 | 1 |
| Curt Bouril | Kevin | Guard | 1 | 1 |
| Rob Morgan | Cab Driver | Howard C. Williams | 1 | 1 |
| Mark DiConzo | Business Man | Uniform | 1 | 1 |
| Martin Ewens | Photographer | Sid | 1 | 1 |
| Mark Doherty | Detective | First Samaritan Op | 1 | 1 |
| Helen Coxe | Gay Man's Fiancé | Claire | 1 | 1 |
← 30 Rock × Person of Interest
Cast data from TVmaze, licensed CC BY-SA 4.0.