Demogorgon

Hole head

Cthulhu Jr.

Flying Squid Bat Murder Monster

Octodad

T⃣H⃣E⃣ A⃣L⃣L⃣ S⃣E⃣E⃣I⃣N⃣G⃣ E⃣Y⃣E⃣

Brainsucker

Dave

Snallygaster