The funniest cameos are the ones you never see coming! For this list, well be looking at guest appearances that were kept secret until the very moment they popped up on our screens - especially those where the celeb only featured in one bit. Our countdown includes Matt Damon, Eminem, Bryan Cranston, Larry David, Barack Obama, and more! What is your all-time favorite surprise cameo from SNL? Let us know in the comments.

Watch more great Saturday Night Live videos here:
Top 20 Funniest Saturday Night Live Sketches: https://youtu.be/HglBDQRLr7M
Top 20 SNL Sketches of the Century (So Far): https://youtu.be/O8mudIkQubs
Top 20 Best SNL Hosts of the Century (So Far): https://youtu.be/NclyAZJ0dNg

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