Steve Martin guest stars on the November 20 episode of 30 Rock. He plays an eccentric millionaire trying to woo Liz Lemon.
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Jennifer Aniston guest stars on the November 13, 2008 episode of 30 Rock. She portrays Liz's unstable former roommate.
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Gosh, how we love Jack Donaghy on 30 Rock. Alec Baldwin should win every award ever made for his portrayal of this character.
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Jerry Seinfeld guest-starred on a season two episode of 30 Rock. Plenty of more celebrities are lined up to appear on season three.
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Tracy Morgan, Tina Fey and Alec Baldwin star on 30 Rock. We're laughing just staring at this picture.
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30 Rock Quotes

Why did you have to offend the gay community? It is the most organized of all the communities. They make the Japanese look like the Greeks.

Liz

Tracy: What is this, Horseville? Because I'm surrounded by naysayers. Wordplay!
Liz: That is solid.