Batman: The Animated Series1992

Dr. Kirk Langstrom:
Who's back there? [Batman steps out of the shadows] You.

Batman:
I'm looking for Dr. March.

Dr. Kirk Langstrom:
He's not here, Batman.

Batman:
Where is he?

Dr. Kirk Langstrom:
Giving a lecture on human extinction and bat evolution. He's really quite brilliant.

Batman:
[holding up a stolen chemical] He's misguided and a thief.

Dr. Kirk Langstrom:
He's just a theorist. He was afraid to put it to the test. But I wasn't. I knew he discovered a formula to create a totally new species, neither man nor bat. And once I started taking it, I couldn't stop. I desperately wanted to, but... *it* took over. Francine and March tried to protect me, but it was too late. The beast knew what chemicals were needed to bring itself about. It was out of my control. And it only needs one more component to complete the process. It's in me, Batman. [Kirk laughs as he begins to transform into the Man-Bat]