Lin Shaye as Helen Keller

Jessie Wiseman as Young Helen Keller

Barry Bostwick as Jonathan

Alanna Ubach as Anne Sullivan

Jesse Merlin as William Keller

Ross Patterson as St. James St. James

Jim O'Heir as Vance

Richard Riehle as Sheriff Ryan

Christine Lakin as Zelda

Edi Patterson as Peters

Robert R. Shafer as Arthur

Brendan McCarthy as Matthew

Lindsay Lamb as Chloe

Jean St. James as Helen Keller's Mom

David Quane as Mel

Mat Best as Bo Scagnetti

Rachel Hardisty as Samantha 'Poots' Thompson

Andrea Saavedra as Sweet Mary Jane