First DC animated movie to have a post credit scene.
Stana Katic voiced another DC Comics character, Talia al Ghul, in the video game Batman: Arkham City (2011).
Lois informs Clark that he missed Perry White's big announcement that his son, Keith, had a baby, possibly referring to Keith Robert White, a young black orphan who appeared in the comics during the 90s, and was eventually adopted by Perry White and his wife.
Three of the voice actors - Stana Katic, Molly C. Quinn, and Jason Beghe - are, or have been, actors in the TV series Castle (2009).
At least two cast members have provided their voice to the highly successful Batman: Arkham games. Stana Katic provided the voice for Talia Al Ghul in Arkham City, and John Noble provided the voice for Jonathan Crane, AKA Scarecrow in Arkham Knight.