Whisper A'Daire

Whisper A'Daire is a villainess in DC comics and secondary leader of Intergang. She once faced Batman when she was a member of the League of Assasins. Whisper was injected with a serum that made her immortal when she first joined the League. She eventually joined Intergang under Bruno Mannheim and worked as a formal bank manager as her disguise. They kidnapped Kane and planed to kill but it was foiled by Nightwing and Renee Montoya.