Jeff the Ref is a penguin. He wears a Referee Jersey and a Silver Whistle.
Team Blue Rally 2
Jeff the Ref made his first appearance as a character in the Stage play Team Blue Rally 2. He was known as simply "Jeff".
Team Blue vs. Team Red
Jeff made his second appearance in the sequel of Team Blue's Rally 2; Team Blue vs. Team Red.
Costume Trunk description
Off the court, Jeff is an average citizen. But on the court, he is The Law. Watch out!
"When this ref calls foul, you best throw in the towel."
Club Penguin: Game Day!
Jeff also appears in Club Penguin: Game Day!. When you ask the captain of your team (depending on the team color) the first question, the captain will mention Jeff the Ref. Jeff is seen at the Town, the Snow Forts, the Dock, the Beach, the Ski Hill and the Ski Village.