Hey, it's Barack Obama! The President came to town on an early 2011 Family Guy episode.
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Drew Carey shows up on this episode of Family Guy. As you can see, he plays himself.
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Family Guy Season 9 Episode 8 Quotes

Let's go find a big, black, sassy, nurse. There's always one

Stewie

Meg: I bet you don't even know what [Obama's] first name is!
Chris: I don't know... Mike?