Separated at Birth?

Interesting that in the absence of the classic Fourth World characters to yet be fully realized in the NewDCU that Professor Insidd, the sadistic Yellow Lantern has a look similar to the Jack Kirby design of Desaad. While the Prof and the Apokolptian interrogator have the same sadistic predilections and toothy grin it is Desaad's hair and the skull designs on Insidd that are creepily similar.