I had not heard of Jansen, but must have seen him since I watched every episode of Hope and Faith. He also guest starred on Even Stevens, Everybody Hates Chris, Major Crimes, and The Walking Dead, plus was a voice actor in animated shows and movies.

https://tvline.com/2023/02/27/jansen-panettiere-cause-of-death-hayden-brother-statement/

Sad to hear he passed away. He had done some few Nick films like Last Day of Summer, and did voice over for Periwinkle in old Blue's Clues, as well as many others.