Picture a triangle with curves instead of angles.

• {FICTIVE} Bill Cipher (Gravity Falls; multiple timelines)
  
• William Cipher (Reverse Falls AU)
  
• Rotomdex (Pokemon Sun and Moon)
  
• Mabel Pines (Gravity Falls)
  
• Papyrus (Undertale)
  
• GIR (Invader Zim)
  
• Itward (Fran Bow)
  
• Mischa Lecter (Hannibal Rising)
  
• Wendy (Don't Starve)
  
• Dolores (The Umbrella Academy)
  
• Arya Stark (Game of Thrones)
  
• Kaywinnet Lee Frye (Firefly)
  
• The Distortion (The Magnus Archives)
  
• Sally (The Nightmare Before Christmas)
  
• Aisling (The Secret of Kells)
  
• Christine Daaé (Phantom of the Opera)
  
• Lyra Belacqua (His Dark Materials)
  
• The TARDIS (Doctor Who)
  
• Robin (Teen Titans)
  
• Neil Perry (Dead Poets Society)
  
• Owen Puck Burnett (Gargoyles)
  
  
• Aaravos (The Dragon Prince)
  
• Dr. Boris Habit (Smile For Me)
  
• Betty Grof (Adventure Time + Fionna and Cake)
  
• Lucy MacLean (Fallout)