Rudolph is one of the 9 reindeer, owned by Santa Claus. He is famous for being the only reindeer with a song named after him. He is also the only reindeer that has an extensive backstory. He is one of two surviving muppets from the first film (alongside with Santa). He is in love with Clarice.
Rudolph is well known due to his red nose. According to the myth, he is the only reindeer to have a red, glowing nose. Because of this, he is used to guide the sleigh, as it lights up the night for Santa. Rudolph tends to be the favourite reindeer for most children and is probably the most famous of the nine.