Dedra Rockwell

• Break the Cutie
• Circus Brat
• Gray Eyes
• Guile Hero
• The Hero
• Jumped at the Call
• Le Parkour
• Messy Hair
• Shiny Midnight Black
• Wide-Eyed Idealist

Terrence Skellington

• Adorkable
• Beneath the Mask
• Dem Bones
• Knight in Sour Armor
• The Lancer
• The Medic
• Nice Hat
• Noodle People
• Shonen Hair
• Spin Offspring
• Perky Goth
• Psychic Powers
• Redheaded Hero
• Super Powered Evil Side

Selena Cat

• Badass Bookworm
• Cat Girl
• Deadpan Snarker
• The Heart
• Humanoid Female Animal
• Spin Offspring
• The Smart Guy
• Team Mom
• Younger than They Look: She's a young adult in cat years, but in human years she's only two years old.

Robyn Skellington

• The Big Guy
• Cool Big Sis
• Daddy's Girl
• Fiery Redhead
• Perky Goth
• Noodle People
• Spin Offspring
• Well Done Son Guy

Princess Roxanne

• Coming Out Story
• Everything's Better with Princesses
• Noble Fugitive
• Rebellious Princess
• Tomboy Princess
• Took a Level in Badass

Morgana Circe

• Affably Evil
• Anti-Villain
• Black Magician Girl
• Dark Action Girl
• Lady of War
• Mama Bear
• Well-Intentioned Extremist
• Woman in White

King Gregory

• Authority Equals Asskicking
• Reasonable Authority Figure
• Royals Who Actually Do Something
• Well-Intentioned Extremist

Note that since you obviously can get more info on each of the characters' pages, I'm only adding tropes that pertain to The Animation Crossroads specificly.

Jack Skellington

• The Big Guy
• Noble Fugitive
• Papa Wolf
• Trapped in Another World

Sally

• Beware the Nice Ones
• Mama Bear
• Noble Fugitive
• Trapped in Another World

Aang

• The Heart
• Trapped in Another World

Katara

• Trapped in Another World

Sokka

• Trapped in Another World

Toph

• Trapped in Another World

Oswald The Lucky Rabbit

• Badass Adorable
• La Résistance
• Rebel Leader

Mickey Mouse

• Badass Adorable
• The Lancer
• La Résistance
• Voice Of The Resistance

Bugs Bunny

• La Résistance
• The Smart Guy
• The Trickster