12/14/2012 01:25 pm ET

Alec Baldwin Wraps '30 Rock' Finale Production

All good things must come to end, including Alec Baldwin on "30 Rock." Baldwin took to Twitter to share a photo from his last day of shooting as Jack Donaghy in his fake NBC office.

Julianne Moore revealed she was returning to the NBC comedy for the finale. Perhaps Baldwin's character will reunite with his childhood sweetheart, Moore's Nancy Donovan, for a happy ending.

Baldwin has been outspoken about his desire to keep "30 Rock" going and offered to take a pay cut to get the NBC show, which was created by and stars Tina Fey, an eighth season.

However, "30 Rock" will end its seven-year run on Thursday, January 31 at 8 p.m. EST on NBC.

30 Rock