Captain Kangaroo Fun Facts:
Prior to his role of Captain Kangaroo, Keeshan originated the character of Clarabell the Clown on The Howdy Doody Show.
The title of the show's familiar theme song is "Puffin Billy".
One of the show's lesser know character's, Mr. Schwinn Dealer, was a shill for one of the Captain's sponsors, the Schwinn Bicycle Company.
William Shatner and Leonard Nimoy (as Captain Kirk and Mr. Spock) appeared in one episode the show to wish the Captain "good morning".
Another children's television icon, Fred Rogers, visited the Captain in 1975.
While recovering from a heart attack in 1981, Keeshan received over 5000 get well cards from fans (both children and adults).