Will Arnett doesn't always use his Dark Knight voice from The LEGO Batman Movie, but when he does, he means business.
The 46-year-old actor had a Facebook Live chat with ET's Kevin Frazier while at Comic-Con 2016 in San Diego, California, on Friday, and revealed when he finds it appropriate to use his brooding Batman voice.
"I don’t yell at my kids, I don’t believe that has any effect," he said. "But sometimes when I need to drop the hammer, like, they need to go to bed or something, [I’ll use the Batman voice]. …It works. They can feel the voice vibrating."
While Arnett may use his superhero bravado to discipline, his sons, 5-year-old Abel and 7-year-old Archie, are still big fans of the LEGO movies. "Best part is, I get to be a part of something my kids can enjoy," he noted. "They love the movies. ...I play with them a lot with LEGOs. So, to be part of it is awesome."
Arnett also joked that the recognition he's now receiving from the LEGO movies and the Teenage Mutant Ninja Turtles films could soon go to his head. "It’s powerful and I’m really tempted to misuse that power," he quipped. "I’m going to at some point, I feel like."
The LEGO Batman movie hits theaters Feb. 10, 2017.