More!
Page 9: Catgut, TR, Rover Joe, King Goshposh, a number of Frackles who resemble Boppity (since it's not in color and the main difference between these frackles are color it's hard to tell who is what color), Thig, an elf, and some characters I don't recognize.
Page 10: Big Bird, Don Music, Cookie Monster, tornado, Zoe, letter F, the Big Bad Wolf, Twiddlebugs, Oscar, worms (possibly Slimey), Stinky, Super Grover, Oscar, Roosevelt Franklin, two little girls (Prairie Dawn and Betty Lou?), and an anything muppet whom I don't recognize (Bill Smith?).
Page 11: Guy Smiley, Mr. Can You Guess, Barkley, Lefty, Prince Charming, Elmo, Louie, Elmo's Mom, The Hare, Telly, Herry, Sherlock Hemlock, a baby (Baby Bobby? Ernestine?), The Count, Osvaldo, Twiddlebugs, and some characters I don't recognize.
Page 12: 1969 Grover, Sully, Abby Cadabby, Mr. Snuffleupagus, Alice Snuffleupagus, Bip Bipodotta, Hoots, Wanda Cousteau, Frazzle, Bug the Bug, Ernie, Bert, Sam the Robot, Forgetful Jones, Buster, various monsters, and various Twiddlebugs.
Page 13: Biff, Professor Hastings, Deena, Pearl, Bruno, Oscar, Super Mommy, Harvey Kneslapper, sun, cloud, oak tree, Mel, and some characters I don't recognize (also part of Buster, the other part of which is on the previous page).
Page 14: Reporter Kermit, Baby Bear, Papa Bear, Humphrey, Ingrid, Natasha, Benny, Sherry Neverland, the three little pigs, Rosita, number organ, bats, twiddlebusg, opera singer, Herbert Birdsfoot (though this design makes him look more like a who), Two-Headed Monster, Gladys, Mumford, and characters I don't recognize.
There. That's all (besides the oens I can't identify). Mr. Penguin will have to fill us in on the missing characters. I am surprised that Statler and Waldorf weren't included.