Peter Cullen, the iconic voice actor behind Optimus Prime and Eeyore, has died at 85

Peter Cullen, age 85, has passed away, the actor most famous for voicing the lead Transformer, Optimus Prime, for over 40 years.

Peter Cullen joins a gorwing list of entertainment industry losses just this month, including Hayden Panettiere, Yayoi Kusama and Dolly Parton.