The Electric Company iotacons

top row: Dr. Doolots (Luis Ávalos), Jennifer of the Jungle (Judy Graubart), J. Arthur Crank (Jim Boyd), Easy Reader (Morgan Freeman), Fargo North, Decoder (Skip Hinnant), Pandora the Brat (Rita Moreno), Valerie the Librarian (Hattie Winston)
bottom row: Spider-Man (Danny Seagren), The Spell Binder (Zero Mostel), Letterman (Gene Wilder), The Short Circus