Cosmo Allegretti also known as Mr. Bunny Rabbit and Mr. Moose (both of which he also created), Dennis the Apprentice, Miss Frog, Mr. Whispers, Dancing Bear, Grandfather Clock, Uncle Ralph. He was the voice of Aniforms puppet TV Fred (a live-action on-screen puppet that appeared behind the blackboard in the Treasure House), and was the artist behind the Magic Drawing Board.but was working as a set painter in the early days of "Captain Kangaroo." He volunteered to make a replacement when the show was dissatisfied with a puppet created by a professional. He gave life to characters Bunny Rabbit, Mister Moose, Rollo the Hippopotamus, Miss Worm, Cornelius the Walrus, Dennis the Apprentice and others. The show, starring Bob Keeshan, started on CBS in 1955 and aired for more than 30 years.

Cosmo Allegretti also known as Mr. Bunny Rabbit and Mr. Moose (both of which he also created), Dennis the Apprentice, Miss Frog, Mr. Whispers, Dancing Bear, Grandfather Clock, Uncle Ralph. He was the voice of Aniforms puppet TV Fred (a live-action on-screen puppet that appeared behind the blackboard in the Treasure House), and was the artist behind the Magic Drawing Board.but was working as a set painter in the early days of "Captain Kangaroo." He volunteered to make a replacement when the show was dissatisfied with a puppet created by a professional. He gave life to characters Bunny Rabbit, Mister Moose, Rollo the Hippopotamus, Miss Worm, Cornelius the Walrus, Dennis the Apprentice and others. The show, starring Bob Keeshan, started on CBS in 1955 and aired for more than 30 years.