Ollie is a slapstick sidekick who is best known for his appearances in the Laurel and Hardy films. He is a loyal companion to Stan Laurel, often providing comic relief with his bumbling antics. Ollie's character is defined by his physical comedy, which often involves him getting into trouble or being the victim of pranks. He is also known for his catchphrase, 'HERE's another nice mess you've gotten me into!'