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.

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  • "Last Lunch"

    Tracy Morgan as Tracy Jordan, Jane Krakowski as Jenna Maroney

  • "Last Lunch"

    Jack McBrayer as Kenneth Parcell

  • "Last Lunch"

    Tracy Morgan as Tracy Jordan, Jane Krakowski as Jenna Maroney

  • "Last Lunch"

    Tina Fey as Liz Lemon

  • "Last Lunch"

    Tina Fey as Liz Lemon, Tracy Morgan as Tracy Jordan

  • "Last Lunch"

    Tina Fey as Liz Lemon, Grizz Chapman as Grizz, Kevin Brown as Dotcom

  • "Last LuncH"

    Sue Galloway as Sue, Katrina Bowden as Cerie, Judah Friedlander as Frank, Keith Powell as Toofer

  • "Last Lunch"

    Judah Friedlander as Frank, Keith Powell as Toofer

  • "Last Lunch"

    Scott Adsit as Pete, Tina Fey as Liz Lemon

  • "Hogcock!"

    Jane Krakowski as Jenna Maroney

  • "Hogcock!"

    Jane Krakowski as Jenna Maroney

  • "Last Lunch"

    Sue Galloway as Sue, Katrina Bowden as Cerie, Judah Friedlander as Frank, Keith Powell as Toofer

  • "Hogcock!"

    Alec Baldwin as Jack Donaghy

  • "Hogcock!"

    Tina Fey as Liz Lemon, James Marsden as Criss

  • "Hogcock!"

    Tina Fey as Liz Lemon, James Marsden as Criss

  • "Hogcock!"

    Tina Fey as Liz Lemon

  • "Hogcock!"

    Alec Baldwin as Jack Donaghy

  • "Hogcock!"

    Alec Baldwin as Jack Donaghy

  • "Hogcock!"

    Jane Krakowski as Jenna Maroney

  • "Hogcock!"

    Ice-T as himself, Richard Belzer as himself, Jane Krakowski as Jenna Maroney

  • "Hogcock!"

    Ice-T as himself, Richard Belzer as himself, Jane Krakowski as Jenna Maroney

  • "Hogcock!"

    Jack McBrayer as Kenneth Parcell

  • "Last Lunch"

    Tina Fey as Liz Lemon, Jane Krakowski as Jenna Maroney

  • "Last Lunch"

    Tina Fey as Liz Lemon

  • "Last Lunch"

    John Lutz as Lutz, Judah Friedlander as Frank

  • "Last Lunch"

    Katrina Bowden as Cerie, Tina Fey as Liz Lemon, Keith Powell as Toofer

  • "Last Lunch"

    Katrina Bowden as Cerie, Judah Friedlander as Frank

  • "Hogcock!"

    Julianne Moore as Nancy, Alec Baldwin as Jack Donaghy

  • "Hogcock!"

    Julianne Moore as Nancy, Alec Baldwin as Jack Donagy

  • "Hogcock!"

    Alec Baldwin as Jack Donaghy

  • "Hogcock!"

    Alec Baldwin as Jack Donaghy, Jim Downey as Downey

  • "Hogcock!"

    Tina Fey as Liz Lemon

  • "Hogcock!"

    Alec Baldwin as Jack Donaghy, Jim Downey as Downey

  • "A Goon's Deed in a Weary World"

    Dante Hoagland as Terry, Tina Fey as Liz Lemon, Marina Bond as Janet

  • "A Goon's Deed in a Weary World"

    Dante Hoagland as Terry, Tina Fey as Liz Lemon, Marina Bond as Janet, James Marsden as Criss

  • "A Goon's Deed in a Weary World"

    Tina Fey as Liz Lemon, James Marsden as Criss Chross

  • "A Goon's Deed in a Weary World"

    Tina Fey as Liz Lemon, James Marsden as Criss Chross

  • "A Goon's Deed in a Weary World"

    Dante Hoagland as Terry and Marina Bond as Janet

  • "A Goon's Deed in a Weary World"

    Jack McBrayer as Kenneth

  • "A Goon's Deed in a Weary World"

    Tracy Morgan as Tracy Jordan, Jane Krakowski as Jenna Maroney.

  • "A Goon's Deed in a Weary World"

    Tina Fey as Liz Lemon.

  • "A Goon's Deed in a Weary World"

    Tracy Morgan as Tracy Jordan and Jane Krakowski as Jenna Maroney.

  • "A Goon's Deed in a Weary World"

    Tracy Morgan as Tracy Jordan, Jane Krakowski as Jenna Maroney and Tina Fey as Liz Lemon.

  • "My Whole Life is Thunder"

    Elaine Stritch as Colleen Donaghy, Alec Baldwin as Jack Donaghy

  • "My Whole Life is Thunder"

    Tina Fey as Liz Lemon, Andrea Martin as Bonnie

  • "My Whole Life is Thunder"

    Jack McBrayer as Kenneth Parcell, Tracy Morgan as Tracy Jordan

  • "My Whole Life is Thunder"

    Tina Fey as Liz Lemon, Alec Baldwin as Jack Donaghy

  • "My Whole Life is Thunder"

    Alec Baldwin as Jack Donaghy, Steve Whitmire as Kermit

  • "My Whole Life is Thunder"

    Elaine Stritch as Colleen Donaghy

  • "My Whole Life is Thunder"

    Tina Fey as Liz Lemon, Alec Baldwin as Jack Donaghy

  • "My Whole Life is Thunder"

    Alec Baldwin as jack Donaghy, Elaine Stritch as Colleen Donaghy

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