You may not know her by name, but "30 Rock" fans will recognize Barrett Doss.

Doss, 23, appeared in the "30 Rock" series finale as Eliza Lemon, Liz Lemon's (Tina Fey) great-granddaughter. Her scene appeared after the credits. In it, Doss' character sits in ageless Kenneth Parcell's (Jack McBrayer) office, pitching a show about the stories her great-grandmother used to tell her. Earlier in the episode, Liz pitched a show about her life to Kenneth, but he quickly shot it down.

"'30 Rock' was -- and still is -- one of my favorite shows," Doss told The Huffington Post via phone. "It was super, super exciting even to just get called in for it because I had never auditioned for them before. That was a really huge surprise. I was just happy to have my first and last chance to do it. It was really awesome."

Once she landed the role, Doss said she couldn't tell anybody about her pivotal moment in "30 Rock" finale.

"Of course everyone wanted to know, but I had to keep my lips sealed," Doss said. "So that was a challenge, but it was worth it in the end because it was a wonderful surprise for everyone."

The scene just features McBrayer and Doss -- with some flying cars added via special effects -- but Doss said she got to meet her fictional great-grandma.

"[Tina Fey] seemed very much involved in the process and she came running onto the set and told me to push up my glasses like she does. That was really excellent," Doss said with a laugh.

As a "30 Rock" fan, Doss said she thought the series finale was an excellent episode.

"I thought it was so solid and the ending -- it's so great to feel some optimism for Liz after so long," she said. "Going along with her and witnessing her relationship failures and her struggles with everything, and just to see she got what everyone wanted her to have in the end, which is a family and someone who's going to get that story that she wanted to tell, told. That was nice, bringing everything full circle."

Doss, a graduate of New York University, has appeared on the New York stage in Thomas Bradshaw's "Burning" and will next be seen in Tom Stoppard's "The Real Thing" in Washington, DC in May. And if she could, she would reprise the role of Eliza Lemon in a heartbeat.

"Oh my gosh," Doss said. "If Tina Fey asked me to, I don't know, talk to her, I would. If she wanted to burp in my face, I would take it. I love her."

See Doss in action as Eliza Lemon in the video below.

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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