Universal Studios Random-ness/Meetable Characters

GUIDE:
 * 🎃= This character can only be met on the month of October
 * 🎄= This character can only be met on the month of December
 * Text in "bold" = This character is upcoming/is in an upcoming land
 * ⭐= This character appears on a special date/occasion
 * [Text in Square Brackets] = Franchise the character originates from

Backlot Tour

 * Gru [Despicable Me]
 * Margo [Despicable Me]
 * Edith [Despicable Me]
 * Agnes [Despicable Me]
 * Kevin the Minion [Despicable Me]
 * Dave the Minion [Despicable Me]
 * Bob the Minion [Despicable Me]
 * Marilyn Monroe [Marilyn Monroe's fame]
 * Charlie Chaplin [Black & White Charlie Chaplin Shorts]⭐ (appears every 15-18th April)
 * Frankenstein [Classic Monsters]🎃
 * Bride of Frankenstein [Classic Monsters]🎃
 * The Invisible Man [Classic Monsters]🎃
 * The Terminator [The Terminator]🎃
 * Zombies [The Walking Dead]🎃

New York City

 * Elmo [Sesame Street]
 * Grover [Sesame Street]
 * Super Grover [Sesame Street]🎃 (replaces Grover on Halloween)
 * Big Bird [Sesame Street]
 * Cookie Monster [Sesame Street]
 * Abby Cadabby [Sesame Street]
 * Ernie & Bert [Sesame Street]
 * Oscar the Grouch [Sesame Street]
 * The Count [Sesame Street]🎃
 * Loui The Pizza Man [No franchise, but based on Loui's NY Pizza Parlour]⭐ (appears on February, June and September)
 * Beetlejuice [Beetlejuice]
 * Red (in Movie Form) [Angry Birds]
 * Chuck (in Movie Form) [Angry Birds]
 * Bomb (in Movie Form) [Angry Birds]
 * Hal (in Movie Form) [Angry Birds]
 * Stella (in Movie Form) [Angry Birds]
 * Jim, Jake and Jay (in Movie Form)
 * The Classic Flock [Angry Birds]⭐🎄 (Replaces all the aforementioned Angry Birds characters to their classical, non-limbed forms)

Netflix Studios

 * El [Stranger Things]🎃
 * Demogorgon [Stranger Things]🎃
 * Viktor Hargreeves [The Umbrella Academy]🎃
 * Masked Guard [Squid Game]
 * Lance [Voltron: Legendary Defender]
 * Princess Allura [Voltron: Legendary Defender]🎄
 * Shiro [Voltron: Legendary Defender]
 * Keith [Voltron: Legendary Defender]
 * Zarkon [Voltron: Legendary Defender]🎃
 * Captain Underpants [Captain Underpants]
 * George Beard & Harold Hutchins [Captain Underpants]
 * Professor Poopypants [Captain Underpants]🎃
 * Dog Man [Dog Man]⭐️ (Appears on January, March, August, and December)
 * Sam-I-Am [Green Eggs and Ham]
 * Sunny Starscout [My Little Pony: A New Generation]
 * Pipp Petals [My Little Pony: A New Generation]🎄
 * Izzy Moonbow [My Little Pony: A New Generation]
 * Hitch Trailslazer [My Little Pony: A New Generation]
 * Zipp Storm [My Little Pony: A New Generation]🎄
 * The Mane 6 [My Little Pony: Friendship is Magic]⭐ (Appears every 8th-12th October)
 * Cuphead and Mugman [Cuphead]
 * Ms. Chalice [Cuphead]🎄
 * Elder Kettle [Cuphead]
 * The Root Pack [Cuphead]
 * Baroness Von Bon Bon [Cuphead]
 * Chef Saltbaker [Cuphead]🎃
 * The Devil [Cuphead]🎃
 * King Dice [Cuphead]🎃

Woody Woodpecker's Kidzone

 * Woody Woodpecker [Woody Woodpecker]
 * Winnie Woodpecker [Woody Woodpecker]
 * Curious George [Curious George]
 * Ted Shackelford [Curious George]
 * E.T. [ET]
 * Fievel Mousekewitz [An American Tail]
 * Tanya Mousekewitz [An American Tail]
 * Warren T. Rat [An American Tail]🎃
 * Bridget [An American Tail]

Toon Lagoon

 * Betty Boop [Betty Boop]
 * Popeye [Popeye]
 * Bluto [Popeye]
 * Olive Oyl [Popeye]
 * Rocky and Bullwinkle [The Adventures of Rocky And Bullwinkle]
 * Dudley Do-Right [Dudley Do-Right]
 * Snidley Whiplash [Dudley Do-Right]🎃
 * He-Man [Masters Of The Universe]
 * Skeletor [Masters Of The Universe]🎃
 * Gumby [Gumby]
 * Pokey [Gumby]
 * The Blockheads [Gumby]🎃
 * Papa Smurf [The Smurfs]
 * Brainy Smurf [The Smurfs]
 * Clumsy Smurf [The Smurfs]
 * Smurfette [The Smurfs]
 * Gargamel [The Smurfs]🎃
 * Bugs Bunny [Looney Tunes]
 * Daffy Duck [Looney Tunes]
 * Elmer Fudd [Looney Tunes]
 * Lola Bunny [Looney Tunes]🎄
 * Waldo [Where's Waldo]⭐ (He has a "1-day chance" throughout the entire year to be spotted and he will roam around for about 10 minutes. The day is not fixed and is randomised)

Super Nintendo World

 * Mario (Super Mario Bros)
 * Luigi (Super Mario Bros)
 * Peach (Super Mario Bros)
 * Toad (Super Mario Bros)
 * Yoshi (Super Mario Bros)
 * Toadette (Super Mario Bros)
 * Bowser (Super Mario Bros)
 * Bowser Jr. (Super Mario Bros)🎃
 * The Koopalings (Super Mario Bros)🎃
 * Koopa Troopa (Super Mario Bros)🎃
 * Spike (Super Mario Bros)🎃
 * Wario (Super Mario Bros)🎃
 * Waluigi (Super Mario Bros)🎃
 * Donkey Kong (Donkey Kong)
 * Diddy Kong (Donkey Kong)
 * Dixie Kong (Donkey Kong)
 * Rabbid (Rabbids)⭐️ (Only appearing until October)

SpongeBob Landpants

 * SpongeBob SquarePants [SpongeBob SquarePants]
 * Patrick Star [SpongeBob SquarePants]
 * Squidward Tentacles [SpongeBob SquarePants]
 * Eugene Harold Krabs [SpongeBob SquarePants]
 * Sheldon J. Plankton [SpongeBob SquarePants]
 * An Elf from "Road To Christmas" special [SpongeBob SquarePants]🎄
 * Raarg [SpongeBob SquarePants]🎃
 * Patchy The Pirate [SpongeBob SquarePants]
 * Burger Beard [SpongeBob SquarePants]🎃 (replaces Patchy The Pirate)
 * Glovey Glove [SpongeBob SquarePants]⭐ (appears on March and June)

N. Sanity Island

 * Crash Bandicoot [Crash Bandicoot]
 * Coco Bandicoot [Crash Bandicoot]
 * Crunch Bandicoot [Crash Bandicoot]⭐ (appears only on November)
 * Dr. Neo Cortex [Crash Bandicoot]
 * N. Brio [Crash Bandicoot]
 * N. Gin [Crash Bandicoot]
 * Tiny Tiger [Crash Bandicoot]🎃
 * Dingodile [Crash Bandicoot]
 * Alternate Tawna [Crash Bandicoot]🎄
 * N. Tropy [Crash Bandicoot]
 * Nitrous Oxide [Crash Bandicoot]🎃
 * Lab Assistant [Crash Bandicoot]🎃

DreamWorks Landing

 * Shrek [Shrek]
 * Princess Fiona Human [Shrek]
 * Princess Fiona Ogre [Shrek]🎃
 * Gingerbread Man [Shrek]
 * Lord Farquaad [Shrek]🎃
 * Fairy Godmother [Shrek]🎄
 * Rumpelstiltskin [Shrek]🎃
 * Puss In Boots [Shrek/Puss In Boots]
 * Kitty Softpaws [Puss In Boots]
 * Humpty Dumpty [Puss In Boots]🎃
 * Princess Poppy [Trolls]
 * Branch [Trolls]
 * Guy Diamond [Trolls]🎄
 * DJ Suki [Trolls]⭐ (appears only during Universal Studios' birthday)
 * Biggie [Trolls]
 * Prince Gistle [Trolls]🎃
 * Bridget [Trolls]🎃