Casey Affleck voices a bear in PETA campaign

Richard Shotwell/Invision/AP

Actor Casey Affleck at the Los Angeles premiere of "Triple 9” at the Regal Theater LA Live on Feb. 16.

By Joe Incollingo Globe Staff 

While older brother, Ben, is busy as Batman, Casey Affleck is lending his voice to a creature with slightly rounder ears. As part of a project helmed by People for the Ethical Treatment of Animals, Affleck will voice Bernard, a life-size animatronic black bear/activist with a sad backstory. “Bears belong with their families in nature, not on display in sad, filthy concrete pits,” Affleck, a longtime vegetarian and animal-rights activist, said in a statement. “PETA’s remarkable animatronic bear will do wonders this summer to show kids and their parents why everyone should stay away from these cruel tourist traps.” In the coming months, the bear will be touring the country to spread his message to tourists and call for the release of his compatriots from similar zoos.