Catwoman [Selina Kyle]; Harley Quinn [Harleen Quinzel]; Poison Ivy [Pamela Isley; also as Dr. Paula Irving]; Riddler [Edward Nigma]; Justice Society of America [JSA; Dr. Mid-Nite [Pieter Cross] (cameo); Wildcat [Ted Grant]]; Andrew Raymond (cameo); Dr. Aesop (villain)
Synopsis
The Sirens ask Riddler to determine who tried to frame them for a murder.