Hayden Panettiere's brother Jansen found dead at 28

• Hayden Panettiere's younger brother, Jansen Panettiere, died this weekend. He was 28.
• A representative for Hayden confirmed the news to CNN.

Jansen Panettiere, an established voiceover actor and younger brother of "Heroes" star Hayden Panettiere, died in New York this weekend. He was 28 years old.

Kasey Kitchen, a representative for Hayden, confirmed the news to CNN. According to Kitchen, Jansen's cause of death is currently unclear and an investigation is underway.

Jansen was a voiceover actor with roles in 2005's "Robots" and 2006's "Ice Age: The Meltdown." He also made guest appearances in TV shows like "Even Stevens," "Everybody Hates Chris," and Nickelodeon's "The X's."

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Hayden is best known for her starring roles on NBC's superhero drama "Heroes" and ABC's musical drama "Nashville."

The two siblings appeared together in the 2004 Disney Channel original movie "Tiger Cruise" and the 2005 sports comedy "Racing Stripes."

More recently, Jansen moved away from Hollywood and embraced his love for art, according to a biography on his website.

"After spending time in LA as an adult he was ridden with terrible anxiety and depression; this period in his life eventually produced a spiritual clarity that drove him to start painting his problems, one by one," the biography reads.

Representatives for Hayden and Jansen Panettiere did not immediately respond to Insider's request for comment.