Despite his hiatus, the green, furry icon was never forgotten. Uncle O’Grimacey earned his own merch line, called the Uncle O ...

McDonald's brings back Uncle O'Grimacey, the beloved green mascot, to celebrate the return of the Shamrock Shake.

Grimace and Uncle O’Grimacey are welcoming the Shamrock Shake back to restaurants nationwide on Monday, Feb. 10 ...

McDonalds is bringing back two iconic favorites to celebrate the 50th anniversary of its Ronald McDonald House charity.

McDonald’s is bringing back its beloved Shamrock Shake with the help of an old friend. The minty green milkshake will return ...

He hasn't gone away, you know - after becoming an Internet legend, Uncle O'Grimacey is returning for McDonald's Shamrock ...

The character known for his purple hue discovers an Irish uncle, on tap to promote the green-hued limited-edition Shamrock ...

Within the MCU (McDonald’s Commercial Universe), this fuzzy green blob of a creature is uncle to Grimace, a point made ...

The beloved Shamrock Shake is coming back to McDonald's, along with a McDonald's character no one's seen since the 1980's: ...

Patrick’s Day. To help promote the drink, McDonald’s is recruiting Uncle O’Grimacey, Grimace’s Irish uncle who hasn’t made a public appearance in over 40 years. Uncle O’Grimacey was ...