ProfessorRibbit Dr. Croaker Rudy the Red-Eyed Specs & Leaps Hopsworth Crimson Croak Boggles Rupert Red-Eye The Spectacled Frog Sir Ribbit of the Red Eyes Amphibia Ace Professor Croakington Red-Eyed Reggie Leapord Bog Frog Goggles & Green Hairy Hopper Brownie the Brave Nocturnal Newt Dr. Hoppy Ribbit & Specs Nightcrawler Swampy Professor Croakerton Red-Eyed Ronin The Leaping Librarian Dr. Froggy Croak & Roll Emerald Eyes Spectacular Frog Professor Green The Goggle-Eyed Gentleman Hopalong Cassidy Ribbit the Righteous Swamp Thing Professor Ribbiton Red-Eyed Romeo The Leaping Scholar Dr. Frog Croakmaster General Emerald Eyesight Spectacular Spectacles Professor Greenleaf The Goggle-Eyed Guru Hopalong Harry Ribbit the Resolute Swamp Dweller Professor Ribbitus Red-Eyed Renegade The Leaping Legend Dr. Frogbert Croaktacular Emerald Enigma Spectacular Speciman Professor Greenthumb The Goggle-Eyed Genius Hopalong Humphrey Ribbit the Remarkable Swamp King Professor Ribbitwick Red-Eyed Rover The Leaping Lord Dr. Frogbottom Croak-a-doodle-doo Emerald Explorer Spectacular Sprite Professor Greenhorn The Goggle-Eyed Goblin Hopalong Harold Ribbit the Radiant Swamp Sprite