Kevin Conroy's landmark portrayal, which lasted longer than any other actor of Batman (live action or animated), has pressed its stamp on the Dark Knight's legacy forever.
Conroy used two different voices (the first one to ever do this) for Batman (one for Bruce Wayne and one for the Dark Knight) on Batman: The Animated Series. However, he used only one voice for Batman and Bruce Wayne on The New Batman Adventures. For Batman Beyond, he used a much gruffer voice for Bruce Wayne's elderly incarnation, and less gruff and softer voice for Batman on Justice League and Justice League Unlimited.
Conroy provided the voice of the character in The Complete Robin Storyboard Sequence, Batman: Gotham Knight, Superman/Batman: Public Enemies, Superman/Batman: Apocalypse, Batman: Arkham Asylum, Batman: Arkham City, Batman: Arkham Knight, DC Universe Online, Justice League: Doom, Injustice: Gods Among Us and Justice League Action. In 2019, Conroy portrayed the character for the first time in live-action in Batwomanepisode of Crisis on Infinite Earths.