Calvin Calaveras, a frog puppet voiced by Peter Cullen, provided wise-cracking comic relief in Season 1 in early 1973. Goldsboro's famous and unforgettable tree-frog imitation apparently was the inspiration.
Helmet, an animated cartoon character voiced by Peter Cullen, comedically danced and chatted with Goldsboro and guests in Season 2 in 1973-74. Helmet looked amazingly similar to Goldsboro and was aptly named after his well-known, rounded, helmet-shaped hair-style.
Jonathan Rebel, a basset hound-dog puppet voiced by Peter Cullen, offered laid-back repartee and quite a bit of snoring as comedy in Season 3 in 1974-75. Proudly and blatantly southern, perhaps he represented and paid tribute to Goldsboro's southern roots.