 The show was perhaps best noted for its abundance of well-known vocal talent.In addition to Leonard, Carl Reiner voiced several characters, most notably Linus' friend Billy Bird; Ruth Buzzi voiced an old witch who'd befriended Lovable Truly, as well as Sugar Bear's sometime nemesis, Granny Goodwitch; and veteran Bob McFadden voiced So Hi, Rory and Lovable Truly.Jonathan Winters made a number of guest appearances, as did Jerry Stiller and his wife Anne Meara.