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Peter Cullen’s Death Certificate Lists Respiratory Arrest and Lower‑Lobe Lung Malignancy

The official medical report names cardiac arrest after respiratory failure as the immediate cause and his last recorded Optimus Prime performance will appear with select 40th‑anniversary screenings.

Overview

  • Peter Cullen died at his Toluca Lake home on August 26, 2026, his family said, and his burial at Forest Lawn is scheduled for September 9.
  • A death certificate obtained by TMZ and reported widely lists cardiac arrest due to respiratory arrest with malignant neoplasm of the lower lobe of the lung as the underlying cause.
  • The certificate also records several contributing conditions, including cerebellar metastasis, hypoxia, chronic obstructive pulmonary disease, hypertension, and high cholesterol.
  • Hasbro and Fathom confirmed a 12‑minute short titled Optimus Prime: Awakening contains Cullen’s final original voice work and will accompany select 4K re‑release screenings beginning September 17.
  • Cullen’s decades‑long role as the voice of Optimus Prime and Eeyore has drawn wide tributes from peers and filmmakers and the upcoming screenings are positioned as both a celebration of his work and a public memorial.