Ludo is a huge red, hairy beast from the Jim Henson directed/George Lucas produced fantasy film : Labyrinth.

Jennifer Connelly's character, 'Sarah' first encounters him hanging upside down from a tree, while a group of goblins with small chomping fetuses on sticks torture him.

She feels bad for this poor creature so she throws rocks at the goblins and sets him free.
He is very thankful and becomes her friend for the rest of the way. (Aww.)

Ludo Quotes
Ludo on the 'Bog of Eternal Stench' : "SMELL BAD"
Ludo on being hog tied to a tree : "LUDO DOWN"
Ludo on his ability to summon rocks to do his bidding : "ROCKS FRIENDS".

Random Ludo Facts:

The Ludo costume was 12 feet tall and weighed a little over 75 pounds. It was made for one man to be able to fit inside. The facial expressions were controlled by a radio control.

Ludo resembles one of the monsters from the popular children's book "Where the Wild Things are".

He is adorable. I want one.

R.I.P. Jim Henson. He ruled.