Justice League Action Season 1 Episode 40
E. Nigma, Consulting Detective
When the Joker traps Batman, the Justice League allows Riddler to help them find him.
Guest Stars
Chris Diamantopoulos
Oliver Queen / Green Arrow (voice)
Dana Snyder
Penguin (voice)
Brent Spiner
Edward Nigma / Riddler (voice)
Mark Hamill
The Joker (voice)
Rachel Kimsey
Wonder Woman (voice)