â¢ Friedrich and Olejniczak, Evaluation of Carcinogenicity Studies of Medicinal Products for Human Use Authorised by the European Centralised Procedure (1995-2009) Regulatory Toxicology and Pharmacology, 2011 â(94/144) 65% cmpdstested positive, but only (11/94) 11% considered to hold human relevance 6
Talk0 Share. Clarabell the Clown was the mute partner of Howdy Doody. Three actors played Clarabell. The first was Bob Keeshan, who later became Captain Kangaroo. Keeshan was succeeded by Robert Nick Nicholson, who also played the character of J. Cornelius Cobb on The Howdy Doody Show.
12 results for Clarabell the Clown. 1  howdy doody's clarabell Clown and pesky peanut.Jan 1, 1953. 2  Clarabell Clown Fish. 3  Howdy Doody's Clarabell Clown and the Merry-Go-Round1955.  The New Howdy Doody Show The Bionic Clown Part 12017 1  CC. Carlton Cards Clarabell 50th Anniversary Collection Ornament.