Legends of Tomorrow star Brandon Routh, who will play Kingdom Come Superman in "Crisis on Infinite Earths," is having a bit of fun with his new Arrowverse role.

In a new photo shared to his Instagram account, Routh mimics Superman's pose from the Justice Society of America #10 cover by artist Alex Ross, which appears at the bottom of this post. The photo sees him gaze directly at the viewer with his head lowered and his hands clasped in front. He stands against a dark background, with light illuminating only the right side of his face.

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Kingdom Come was a 1996 Elseworlds storyline that was set in a drastically altered future for the DC Universe. In this future, the Joker killed Lois Lane during an attack on The Daily Planet. Though Joker was ultimately killed by another hero, Clark Kent retired Superman and spent the next decade in his Fortress of Solitude.

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He eventually reformed the Justice League and created a prison for violent heroes who killed in the name of justice. This experiment was ultimately destroyed, with Shazam sacrificing his life in the process, and so he returned to Kansas, where he rebuilt his life with Wonder Woman. It is unclear how much "Crisis on Infinite Earths" will borrow from this storyline.

Routh won't be the only Superman character in the crossover. Tom Welling and Erica Durance will reprise their Smallville roles for the massive crossover event as well. Tyler Hoechlin and Elizabeth Tulloch will also appear as Superman and Lois Lane, reprising their roles from last year's Arrowverse crossover.

"Crisis on Infinite Earths" begins Sunday, December 8 at 8 pm ET/PT on Supergirl, then continues in Batwoman on Monday, December 8 at 8 pm ET/PT and in The Flash on Tuesday, December 10 at 8 pm ET/PT. After the winter hiatus, the crossover will conclude on Tuesday, January 14 in Arrow at 8 pm ET/PT and in DC's Legends of Tomorrow at 9 pm ET/PT.

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