Final answer:
The character described as 'All that is gold does not glitter' is Aragorn from The Lord of the Rings.
Step-by-step explanation:
The character described by the poem as 'All that is gold does not glitter' is Aragorn from J.R.R. Tolkien's The Lord of the Rings. This line is part of a poem about Aragorn's true identity, highlighting that his noble character may not always be apparent on the surface. Aragorn is later revealed to be the rightful heir to the throne and plays a crucial role in the epic fantasy series.