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

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

Uncle O’Grimacey, the Irish uncle of fuzzy purple fan favorite Grimace, is making his return to the Ronald McDonald universe.

An old-timey McDonald's character is making a comeback this month—and we have all the details below. Can you guess who it is?

McDonald's is bringing back its iconic Shamrock Shake — with the help of a beloved mascot's relative! McDonald's said ...

The company said Tuesday that Grimace will reunite with his Irish uncle, Uncle O'Grimacey, unretiring the mascot after ...

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

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

One of the most recognizable holiday treats at McDonald's is making its return, along with one of Grimace's relatives.

McDonald’s fans, brace yourselves because the food chain is about to reintroduce its seasonal classic—the Shamrock Shake.

Helping to welcome the Shamrock Shake back to menus are Grimace and his uncle, Uncle O’Grimacey. The reunion sheds light on ...

One of the most recognizable holiday treats at McDonald's is making its return, along with one of Grimace's relatives.