The website, detroit.curbed.com, spotted the Argo actor Scoot McNairy on the set of Zack Snyder's Batman v Superman: Dawn of Justice . Hit the jump to have a look.

Back in June, Deadline reported that John Marcus "Scoot" McNairy had landed a role in Zack Snyder's Batman v Superman. Information about who he is playing has been left up to speculation as some trade reporters have claimed they are "sworn to secrecy" regarding his part. Mysterious! I like it. Is he Nightwing? Is he The Flash? Or, maybe he's just a fart in the wind? We just don't know. Scoot, made a name for himself in the Ben Affleck-directed flick, Argo and even appeared in the Marvel one-shot, All Hail the King.

- Zack Snyder will direct. It's written by Chris Terrio, from a screenplay by David S. Goyer. The film stars: Henry Cavill as Superman/Clark Kent and Ben Affleck as Batman/Bruce Wayne. The cast also includes: Amy Adams as Lois Lane, Laurence Fishburne as Perry White, Diane Lane as Ma Kent, Jesse Eisenberg as Lex Luthor, Ray Fisher as Cyborg and Gal Gadot as Wonder Woman/Diana Prince. Will arrive in theaters