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.
Billie Thomas became âBuckwheatâ in the 1935 episode called, Mamaâs Little Pirate. But he continued to play the role as a girl. Since the character, âBuckwheatâ was originally a girl, Hal Roach and the studio must have wanted to keep it that way â even though the new actor for Buckwheat was the boy, Billie Thomas.