PEOPLE has obtained Peter Cullen's death certificate, confirming his cause of death
The voice actor died at his home in Los Angeles on Aug. 26 at age 85
In a statement, his family asked fans to "honor his remarkable legacy by serving your communities and leading others with compassion, integrity and loyalty"
Peter Cullen's cause of death has been revealed.
The voice actor, who best known for playing Optimus Prime in the Transformers movies and Eeyore in Winnie the Pooh, died on Aug. 26 at his Los Angeles home at age 85, a rep previously confirmed to PEOPLE.

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