Meet the mascot guru who went from being the original Phillie Phanatic to helping create Gritty

Shadows of Tomorrow: Jason DeMarco's Villainous DOOM Stories THREAD, Part 1 (MF DOOM Tribute)

The Mascot Whisperer - The New York Times

For better or for worse, the Phanatic helped introduce Gritty to Philadelphia sports fans

Valley News - Meet the Man of Many Mascots

Phillie Phanatic creator reflects on mascot's origins 40 years later

Who's the best Philadelphia mascot: Gritty or the Phillie Phanatic?

Good Morning America - GMA is taking the show on the road to Philadelphia! Don't miss #GMAinPhilly TOMORROW! We'll have guest appearances by our fav mascots! Gritty Phang Phillie Phanatic Franklin

Happy Birthday to the Greatest Mascot in all of Sports — chops316 on Scorum

SHORE LOCAL, Mainland

Gritty's project code name was 'Pigeon,' and other secrets from his social media team

How much would it cost to get Gritty (or another Philly mascot) to show up at your holiday party?

Gritty and the Phillie Phanatic finally met and it was just as ridiculous as you'd hoped - Article - Bardown

Happy Birthday to the Greatest Mascot in all of Sports — chops316 on Scorum

Phillie Phanatic creator reflects on mascot's origins 40 years later