I didn't realize he was nearing 50.
Grover debuted on the Ed Sullivan show in 1967. He's lived on Sesame Street since 1970. Before that, he lived in Cleveland.
He holds jobs as a waiter, a taxi driver, and a singing telegram artist. He invariably runs across a balding, mustached customer named Mr. Johnson. As a waiter, Grover brings him a bowl of tomato soup, when Mr. Johnson ordered split pea. As a taxi driver, Grover takes him to the Empire State building, when Mr. Johnson wanted to go to Wall street. As a singing telegram artist....well, Grover can't sing, so you can imagine.
He has a heart of gold, but the capabilities of a four-year old. The fact that he got a taxi license is more than a bit disconcerting. He probably charmed the guy at the DMV. Grover is confused at times, but, boy is he lovable.
He has an alter ego named Super Grover who is "smarter than a speeding bullet." Attired in a silver helmet from a suit of armor and a red cape, he flies around the city in search of someone in trouble. His intentions are noble, but he often fumbles the rescue. Luckily, he has a lot of Muppet friends who help him out. Kermit is his best buddy. Grover calls him "frogee baby," which Kermit hates.
Grover is loved around the globe. In South America, he's known as Archibald. In Portugal, he's known as Walter. In Israel, he's known as Kruvi (cabbage.) Go figure.
He's been in the Macy's Thanksgiving Day parade and on Jimmy Kimmel.
Not bad for a blue, fuzzy, middle-aged dude.