Hayden Panettiere’s Marine Conservation Campaign Continued Until Weeks Before Her Death

Photo Credit: Hayden Panettiere in 2011, by Tabercil, CC BY-SA 2.0.

Hayden Panettiere was widely known for her acting roles in Heroes and Nashville, but she also spent much of her adult life campaigning for the protection of whales and dolphins.

Her involvement in marine conservation began to attract international attention in 2007, when, aged 18, she travelled to Taiji, Japan, with the Whaleman Foundation. Panettiere was one of six surfers who paddled into Taiji’s dolphin-hunting cove as part of a peaceful protest against the annual dolphin hunts. The protesters formed a circle on the water in memory of dolphins that had been killed that morning. The confrontation with fishermen was filmed and later featured in the Oscar-winning documentary The Cove.

The Taiji protest was not an isolated appearance. Panettiere was a spokesperson for the Whaleman Foundation and its “Save the Whales Again!” campaign. In 2007 she also attended the 59th meeting of the International Whaling Commission in Anchorage, Alaska, where she took part in campaigning around whale conservation.

She subsequently returned to Japan with Whaleman Foundation founder Jeff Pantukhoff. During that visit, Panettiere said that her aim was to open communication with people in Japan about the dolphin hunts rather than to attack Japan or its people. She also discussed alternatives that could provide economic opportunities for communities involved in the hunts.

Her campaigning continued into the following years. In 2011, she was involved in efforts to protect whales from commercial whaling and travelled to Washington, D.C., where she met with government officials about marine conservation issues.

Panettiere also became involved in campaigns against keeping marine mammals in captivity. In 2019, she was among public figures who signed an Earth Island Institute letter concerning more than 80 orcas and beluga whales being held in captivity in Russia, calling for the animals to be returned to the ocean.

Most recently, Panettiere worked with PETA on a campaign opposing the captivity of dolphins and whales in marine parks. She filmed the campaign on July 22, 2026, only weeks before her death. PETA released the campaign after her death, featuring Panettiere speaking about marine-mammal captivity and urging people not to visit marine parks.

Over almost two decades, she repeatedly used her public profile to campaign on issues affecting whales and dolphins, including dolphin hunting, commercial whaling, wild-cetacean capture and marine-mammal captivity.

Panettiere was 36 when she died on August 16, 2026.