Query and Echo make a small apperance in the game DC Universe Online in the Riddler's secret hideout in the Monarch Playing Card Company, Echo and Query assist the hero in defending the Riddler ...

Query. Diedre Vance, also known as Query, is one of the Riddler's henchwomen. She always with her partner Nina Damfino, also known as Echo. Query has blonde hair and often wears a police-like hat.

Nina Damfino, also known as Echo, is one of the Riddler's henchwomen. She is always with her partner Diedre Vance, also known as Query. Echo has dark skin tone and short black hair.

Diedre Vance, also known as Query, is one of the Riddler's henchwomen. She always with her partner Nina Damfino, also known as Echo. Query has blonde hair and often wears a police-like hat.

Query and Echo are well known as The Riddler's two henchwomen. Currently, the two have parted ways with the Riddler and have since made very few appearances.

Query and Echo are well known as The Riddler's two henchwomen. Currently, the two have parted ways with the Riddler and have since made very few appearances.

Query and Echo are well known as The Riddler's two henchwomen. Currently, the two have parted ways with the Riddler and have since made very few appearances.

In case you're not aware, the Riddler once had two henchwomen named Query and Echo. Never heard of them? Well, you heard about them now. Anyway, I'm t

In Detective Comics #705- 707, the Riddler sends his henchwomen Query and Echo to release the Cluemaster out of prison. The escape attempt is a success although the Cluemaster was against the idea.

Query and Echo. In his next crime, the Riddler used much more elaborate riddles and tricks to throw the police off of his intentions.