| 30 Rock character | SNL cast member |
| Liz Lemon, TGS' head writer | |
| Tracy Jordan, TGS star | |
| Dr. Leo Spaceman | |
| Floyd, Liz's boyfriend | |
| Various characters, including Barbara Walters and cat wrangler lady | |
| Katherine Catherine Donaghy, Jack’s sister | |
| Patricia Donaghy, Jack’s sister | |
| Verna Maroney, Jenna's mother | |
| | 30 Rock character | SNL cast member |
| Raheem Addad, Liz’s neighbor she suspects is a terrorist | |
| Himself, a celebrity Tracy tries to scare to death | |
| Maynard, Jenna's stalker | |
| Tomas, Prince Gerhardt's messenger | |
| Candace Van der Shark, actress who stars in 'A Dog Took My Face, And Gave Me A Better Face To Change the World: The Celeste Cunningham Story' | |
| Star of NBC show 'Bitchhunter' | |
| Paul, Jenna's boyfriend who does a drag show dressed up as Jenna | |
| Jack Donaghy, Liz's boss | |
| Gavin Volure, Jack's friend under house arrest | |
| Himself, Liz's ex-boyfriend | |
| Sid, the announcer | |
| Dick Lemon, Liz's father | |
| Himself (voice only) | |
| J. D. Lutz, show writer | |
| Paula Hornberger, Pete's wife | |
| Mentioned in passing | |
|