This December, theJustice Leagueactor guest-stars as Bruce Wayne from the future inthe Arrowverses Crisis on Infinite Earths crossover.
But theyre different than the ones I explored onBatman Beyond.
He is stupendous, says crossover executive producer Marc Guggenheim.

Dean Buscher/The CW
It was really exciting.
Conroys appearance in Crisis is the result of a dream.
We reached out to Kevin and he couldnt have been more lovely and more game for it.

Dean Buscher/The CW
So I think they thought this was an opportunity to take advantage of that interest.
To Conroys amazement, though, playing Bruce Wayne ended up being more challenging than he expected.
It threw me at first, says Conroy.
I never approached this character from that physicalized aspect.
I always just inhabited him with my voice.
It did take a while to get used to, I have to admit.
I was surprised because I know the character so well.
Thankfully, his main scene partners, Ruby Rose and Melissa Benoist, helped him overcome this initial obstacle.
Everybody was so generous to work with.
I cant emphasize how enough how welcoming everyone was, especially Ruby.
She is so open and giving.
I just fell into her eyes at one point and we just connected on camera.
It was wonderful, he says, adding that it was amazing to work with Benoist, too.
I felt like I was working with old friends Id known for years.
There was just such trust there that I could open up to them on camera.