Viola Davis

The Oscar-winning actress starred alongside Panettiere in the films The Architect (2006) and Custody (2016) and remembered the "gifted" actress.

Davis wrote on Instagram: "What an amazing talent you were... so gifted.

"I wish the world had more time with you because I had a burning curiosity about who you were becoming. I saw this beautiful Phoenix rising from the ashes.

"Your tests became your testimony, and your testimony became your legacy."