While associated with Batman, Allen's character is the third mainstream incarnation of the Spectre, a supernatural cosmic being that embodies the divine wrath of God and punishes the guilty harshly.

[2] The character appeared in the 2012 film The Dark Knight Rises and was played by Rob Brown, Andrew Stewart-Jones in the first season of the television series Gotham and by Kobna Holdbrook-Smith in Justice League, part of DC Extended Universe.

Undergoing a trial of sorts to make his bond with Aztar permanent, Allen is conflicted in simply punishing the guilty only after a they committed a sin and in his final test Allen is forced to punish his young son when he kills Corrigan in revenge but learns the Spectre's role merely sends being to the afterlife to be judged but is granted a moment with his son by Aztar and fully accepts the responsibilities.

Reminded of the importance of deductive ability, Allen punishes a therapist who uses therapeutic hypnosis to control a patient's power to manifest a monstrous creature and targets those whom she believed personally wronged her.

[2] As the Spectre, Allen possess the same typically associated with the character,[2] which includes near omnipotent magical and physical abilities, making him capable of virtually any feat and to control space, time, reality, and matter.