Here are some other characters who carry rings:
* Gandalf the Grey: He carries three of the Three Elven Rings: Narya, Vilya, and Nenya.
* Galadriel: She carries the Three Elven Ring: Nenya.
* Elrond: He carries the Three Elven Ring: Vilya.
* Saruman: He carries the One Ring for a short time after it is found by Gollum.
* Gollum: He carries the One Ring for much of his life.
* Bilbo Baggins: He carries the One Ring for many years before passing it on to Frodo.
It's worth noting that the rings worn by the elves are not the same as the One Ring and they are not associated with the same kind of power and danger.