Wow! More cartoon and comic fonts than you can shake a stick at!
Nate Piekos‘ outstanding website is bursting with comic fonts! Cartoonists and comic artists will have a great time perusing and using Nate’s work! How this guy does it is beyond me, but I’m sure glad he does!
My personal favorites are Digital Strip and Letter-O-Matic.
Make sure you read his license agreement for using the free fonts. As long as you’re not profiting from any product using his font you should be fine.
His Comics 101 section is great too! Lots of valuable information!
Check out Blambot!