While Hamilton has worked regularly, a lot of the roles she's performed haven't actually been in front of the camera—instead, her distinctive voice has helped bring life to a variety of offscreen and animated characters.
Aside from playing Nemesis in Hercules, she's become a mainstay in the DC animated universe, where she's played Susan Maguire in The New Batman Adventures, Dr. Stephanie Lake in Batman Beyond—both the movie and the TV series—and Madame Lorraine in the video shorts DC Showcase: Jonah Hex, Superman/Shazam!: The Return of Black Adam and DC Showcase Original Shorts Collection.
"This form of creating a character is backwards from what I'm used to, in that they start with the script and your voice, and then create around that," Hamilton said of doing voice work. "So it's very different for me, and yet it's a very powerful way to start something, to feel as though you are the total origin of it. I don't mean that as an ego thing, but that it's wonderful the way they match a character to your voice. It's a very different way of acting."