Smallville star Tom Welling seemingly teased... 1 / 8
... his appearance in the upcoming Crisis on Infinite Earths crossover. 2 / 8
A fan commented on Welling's Instagram, ''I hope you're in Crisis on Infinite Earth's [sic].' 3 / 8
Welling responded, 'duh.' 4 / 8
While not official confirmation, the comment does make it sound like he might appear. 5 / 8
Arrow star Stephen Amell said he wants Welling to appear... 6 / 8
... and producer Marc Guggenheim said he's been pursuing Smallville alum. 7 / 8
Brandon Routh is already set to play Superman alongside Tyler Hoechlin. 8 / 8