All 57 actors in both 30 Rock and Rescue Me
57 actors have appeared in both 30 Rock and Rescue Me, across 231 episodes. The most-credited is Dean Winters, Dennis Duffy in 30 Rock and Johnny Gavin in Rescue Me.
| Actor | In 30 Rock | In Rescue Me | Eps | Eps |
|---|---|---|---|---|
| Dean Winters | Dennis Duffy | Johnny Gavin | 15 | 22 |
| Susan Sarandon | Lynn Onkman | Alicia Green | 2 | 7 |
| Michael Mulheren | Gordan Beckman | Chief Perolli | 1 | 14 |
| Peggy J. Scott | Cheryl | Jeannie Reilly | 1 | 14 |
| Timothy Adams | NY Post Guy | Chris | 1 | 7 |
| Ashlie Atkinson | Theresa | Theresa | 1 | 6 |
| Jessica Leccia | Maria | Mary Magdelene | 1 | 4 |
| Amy Sedaris | Visor Lady | Beth | 1 | 2 |
| Phoebe Strole | Becca | Jennifer | 1 | 2 |
| Sharon Wilkins | Angie Jordan | Latrina | 1 | 3 |
| Jimmy Palumbo | Enzo, Matt Dowd | Brian | 2 | 3 |
| Siobhan Fallon Hogan | Patricia | Phyllis, Kenny's Wife | 1 | 3 |
| Teresa Yenque | Cleaning Lady, Concepcion | Deli Owner | 2 | 1 |
| Ned Eisenberg | Marty | Burt | 1 | 1 |
| Patrick Heusinger | Brian | Steve Burton | 1 | 1 |
| Victor Cruz | Grip | Janitor #2 | 1 | 1 |
| David Alan Basche | Alan | Steve, Steve Bowden | 1 | 2 |
| Erik Jensen | Cjokula | Ringmaker | 2 | 1 |
| Adam Trese | Richard | Dick MacNamara | 1 | 1 |
| April L. Hernandez | Vikki | Marla | 1 | 1 |
| Clarke Thorell | Russ | Local Chief | 1 | 1 |
| Doug Moe | Host | Jeffrey | 1 | 3 |
| Kerry Butler | Lyle | Marsha | 1 | 1 |
| Pierra Francesca | Debra | Pretty Girl | 1 | 1 |
| Stephanie March | Gretchen Thomas | Psychic | 1 | 1 |
| Celisse Henderson | Court Officer | Nurse Voice #1, Singing Nurse #3 | 1 | 2 |
| Madison McKinley | Dutch Cousin | Snezyana | 1 | 2 |
| D.K. Bowser | Rolly the Janitor | Male Nurse | 1 | 1 |
| Deidre Goodwin | Deborah | Hostess | 1 | 1 |
| Ed Moran | Clark | Detective | 1 | 1 |
| George Bartenieff | Douglas Templeton | Mel | 1 | 1 |
| Mark Lotito | Jimmy | Vinny | 1 | 1 |
| Michael Nathanson | Hank | Victim #2 | 1 | 1 |
| Rick Zahn | Judge | Sergeant | 1 | 1 |
| Boris McGiver | Patrick | Captain Kent | 1 | 1 |
| J. Elaine Marcos | Female EMT #1 | Pretty Lesbian | 1 | 1 |
| Jamil Mena | Scott | Jorge Mendoz | 1 | 1 |
| Ana Maria Jomolca | Cleaning Lady | Kevin's Mom | 1 | 1 |
| Bridget Moloney | Anna | Texter #2 | 1 | 1 |
| Elisabeth A. Furtado | Gym Teacher | Bull Dyke, Lesbo #2 | 1 | 2 |
| Joe Coots | Blue Collar Guy | Husky Probie | 1 | 1 |
| Jon Prescott | Guy | Memory Hank | 1 | 1 |
| Michael Carlsen | Construction Worker | Driver | 1 | 1 |
| Stephen Beach | CIA Agent | Detective | 1 | 1 |
| Brian Patrick Russell | Cleveland Cop | Funeral Director | 1 | 1 |
| Martin Pfefferkorn | Homeless in Audience | Homeless Guy | 1 | 1 |
| Sylvia Kauders | Old Woman | Elderly Woman | 1 | 1 |
| Jordan Leeds | Sportswriter #4 | Doctor #4 | 1 | 1 |
| Reathel Bean | Executive #1 | Norm | 1 | 1 |
| Kelly Deadmon | Woman | Maddie Vincent | 1 | 1 |
| Mark Doherty | Detective | State Trooper | 1 | 1 |
| Wally Dunn | Priest | Bar Patron #2 | 1 | 1 |
| Darlene Violette | Melon Ball Lady | Woman #2 | 1 | 1 |
| Jabari Gray | Executive #5 | Cop | 1 | 1 |
| Nikki Ghisel | MSMBC Receptionist | Not a Knockout | 1 | 1 |
| Ann Harada | Woman #3 | Doctor #3 | 1 | 1 |
| Gabe Hernandez | Bartender | Cop | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.