Grimace is a character featured in McDonaldland commercials. He is a large, purple anthropomorphic being of indeterminate species with short arms and legs. He is known for his slow-witted demeanor. His most common expression is the word "duh". He had been voiced by Patti Saunders (1971 - 84), Frank Welker and, sometimes, Larry Moran in the commercials, and Kevin Michael Richardson in the VHS series "The Wacky World of Ronald McDonald. Grimace was also one of the antagonists, but later changed to become a protagonist.
As time went on, Grimace's family was seen in commercials and the VHS series "The Wacky World of Ronald McDonald". He has an unnamed mom, an unnamed dad, a grandma named "Winky", a great, great grandma named Jenny Grimace, a possible brother named King Gonga (who rules over all Grimaces).
While many family members have been mentioned, most heavily seen and mentioned is Uncle O'Grimacey who will come one month every year, around St. Patrick's Day in March, to bring Shamrock Shakes.