From my friends at Hollywoodmemoir.com
Jimmy Wall (Born ? - October 27, 2010) was a regular on Captain Kangaroo from 1968 until 1978. Playing the kindly "Mr. Baxter," he added a sense of calm to the show when all others around him may have been caught up in the silliness. He also starred with the Captain and Mr. Greenjeans in a serialized production entitled "The Missing Paint Mystery" (shown on the program from December, 1969 until 1977; with the exception of 1976) in which the trio travels to Curaçao (a Caribbean island) to confront the playfully evil villain, Garumph (played by Cosmo Allegretti).....
More at.... http://www.hollywoodmemoir.com/jimmy-wall