|This article is written from the Real World perspective|
Hynden Walch (born February 1, 1971 in Davenport, Iowa) is an American actress and singer, who provided the voice of Ace. Among her other DC roles are Starfire, Blackfire, Argent and Madame Rouge in Teen Titans, young Bruce Wayne in Batman: Gotham Knight, and Harley Quinn in The Batman and Batman: Assault on Arkham.
- In Justice League, "Wild Cards", Batman insinuates that Ace has replaced Harley in Joker's affections. Hynden Walch went on to voice Harley in the non-DCAU series The Batman and the animated movie Batman: Assault on Arkham.
- Both of her roles in the DCAU are extremely powerful young girls with glowing eyes and a troubled youth.
- List of DCAU voice actors in Batman: The Brave and the Bold
- List of DCAU voice actors in DC Universe Animated Original Movies
- List of DCAU voice actors in Teen Titans
- List of DCAU voice actors in The Batman