Justice League Action Shorts S01E14 - Missing the Mark

Celebrity actor Mark Hamill is kidnapped by the villainous duo of Joker and Trickster when needing a ride to Gotham Conservatory. The two of them then proceed to take him on a rampant car chase through the city in order to afford a ransom for his safe return. As the police pursue Joker's car, Mark Hamill manages to trick them by impersonating their voices to start a fight between the two villains before being saved by Swamp Thing. As the police catch up, Swamp Thing comments to Joker and Trickster that Mark Hamill is a talented voice actor. The short ends with Joker quoting "What's a voice actor?"