While Jax-Ur does exist in the comic books, he is not the military leader he is portrayed to be here. Instead, he is usually an associate of General Zod, who this version of Jax-Ur more closely resembles. Mala is more likely a nod to Ursa, another known associate (and second in command) to General Zod.
Included as one of Bruce Timm's Picks on the bluray release of All-Star Superman (2011).