Shelob as Spider - Fictional animals by species Fan Cast | myCast.io
Shelob
female
Shelob is a fictional monster in the form of a giant spider from J. R. R. Tolkien's The Lord of the Rings. Her lair lies in Cirith Ungol leading into Mordor. The creature Gollum deliberately leads the Hobbit protagonist Frodo there in hopes of recovering the One Ring by letting Shelob attack Frodo.
Obviously, don't nominate any human characters. Hybrids like Cheetah or The Lizard are okay, as are shapeshifters with one set animal form (eg Professor McGonagall.)