United Kingdom, Sept. 10 -- Seth Green "shredded" his vocal cords after overworking himself.

The 52-year-old actor suffered a muscular injury to his voice because of doing multiple projects within a two-year period without no rest.

On the latest episode of Josh McBride's The McBride Rewind podcast, Seth explained: "So I, in a 24-month period, was doing Hulk and the Agents of S.M.A.S.H., Family Guy, Robot Chicken, Ninja Turtles, and then I agreed to do Call of Duty.

"I didn't take care of myself, and I would go from project to project. You need more than a day in between to recover.

"Especially Call of Duty. I did 10 DLC [downloadable content], and each one of them was their own isolated four-hour record."

Seth added that the Call of ...