Mr. Moose - Wikipedia Mr. Moose This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. ( February 2016 ) Mr. Moose and the Captain 's Jacket at the Smithsonian Institution Mr. Moose was a puppet character on the children 's television show Captain Kangaroo. He would tell riddles and knock - knock jokes that would result in hundreds of ping pong balls falling from above, and hitting the Captain on the head. Mr. Moose was created and played by Cosmo Allegretti, who also created and played Mr. Bunny Rabbit, Dancing Bear, and the Captain 's painter and handyman Dennis. In other media In the animated television series Family Guy episode `` Hell Comes to Quahog '', after Joe sends a ping pong ball out a window, Peter persuades Mr. Moose to say `` Knock, knock '', then answers `` Ping pong balls ! '', and ping pong balls fall on top of Peter. Notes Jump up ^ `` Cosmo Allegretti ''. IMDb.com. Internet Movie Database. External links Captain Kangaroo with Mr. Moose at YouTube This article about a fictional television character is a stub. You can help Wikipedia by expanding it. This puppet - related article is a stub. You can help Wikipedia by expanding it. Retrieved from `` https://en.wikipedia.org/w/index.php?title=Mr._Moose&oldid=828929675 '' Categories : Puppets Fictional deer and moose Television character stubs Puppet stubs Hidden categories : Articles needing additional references from February 2016 All articles needing additional references All stub articles Talk About Wikipedia Add links This page was last edited on 5 March 2018, at 16 : 48. Text is available under the Creative Commons Attribution - ShareAlike License ; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia ® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization. About Wikipedia

Question: who dropped ping pong balls on captain kangaroo
Answer: Mr. Moose