"I want to do a Scooby-Doo season," he confessed. "Scooby-natural, all 22 episodes."
The "Scooby-natural" episode was announced at the CW's Upfront presentation in May, but there's a few details still up in the air, like which car is faster, between Supernatural's famous Impala or Scooby-Doo's Mystery Machine.
"You'll have to see," Padalecki teased. "Depends on who's driving, I guess."
"It is a charming and very funny episode," Supernatural executive producer Brad Buckner added. "It's like the better meta episodes, where you have fun with what the show is and now you get two shows to tweak. There's a certain amount of expertise on a certain brother about what Scooby world is, and we have fun with that."