Fans hoping for more of the Hulk may be waiting a while.

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On Thursday night, Mark Ruffalo appeared on Global’s “The Late Show with Stephen Colbert” and was asked if Marvel fans will get to see his take on Bruce Banner again any time soon.

“I don’t know,” the actor admitted.

Ruffalo did say that he has had conversations with Marvel chief Kevin Feige about the potential for more Hulk stories down the road.

“He did say, ‘Hey, do you think there’s any more story left here?’ and I said, ‘I could probably come up with a few storylines,'” Ruffalo recalled.

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The “Dark Waters” star also talked about the impact of the Marvel films on audiences, including his own son and his friends’ reactions after seeing “Avengers”.

“All these kids were bawling, crying, freaking out, screaming in the car and that’s real emotion I think,” Ruffalo said.