After months of teasing, Harley Quinn will debut in Monday's Gotham season finale on Fox according to Bruce Wayne actor David Mazouz. In an interview with Movie Pilot, Mazouz was surprisingly upfront with the news when asked about the character given show exec John Stephens previously teasing her debut.
"She's going to be in the finale," Mazouz said. "Stay tuned."
No casting for the role has been made public. Long-time series co-star Erin Richards has adopted some mannerisms similiar to Harley Quinn in her ongoing role as Barbara Kean, leading some to suspect she might turn into Harley Quinn at some point.
Gotham's two-part season finale is scheduled to air June 5 on Fox.