They made us laugh, but these Cartoon Network shows could also get serious. For this list, were looking at the rare occasions where Cartoon Network series suddenly got very heavy and/or very intense. Our countdown includes Adventure Time, Teen Titans, Samurai Jack, and more! Whats YOUR favorite serious Cartoon Network moment? Let us know in the comments!

Watch more great Cartoon Network videos here:
Top 10 Cartoon Network Shows That You Miss - https://youtu.be/Rh3Wmi0jW68
Top 10 Greatest Cartoon Network Crossovers - https://youtu.be/jTjOzKEXdkQ
Top 10 Cartoon Network Theme Songs - https://youtu.be/epkhxGvIf5Q

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