Frank Del Vol (1911-1999) Leonard Stone, Camp Runamuck, TV, 1965-1966.        Ill-health forced the bandleader-cum-actor to leave the pilot. His substitute as Doc Joslyn in the next 14 summer camp episodes was Stone - best known for Willy Wonka & the Chcolate Factory. Copyright © 2022 Crawley's Casting Calls. All Rights Reserved. Joomla! is Free Software released under the GNU General Public License.