Aquaman in Jeopardy...

It was on the Thursday, May 14th show, double Jeopardy round. Alex asked the question while this graphic was shown:

The category was "The Book of Mermen", a play on the musical that one of the contestants, Josh Gad was once in. It was the $1600 question.

DC Comics has a merman -- this guy in the Justice League, who married the undersea queen Mera

Josh rang in immediately with the correct response... however, he didn't do well in final Jeopardy and came in third in the game.