Question: actor who knows sign language?
Answer: Born deaf, Sean Berdy is an actor, comedian, writer and producer known for his leading role as Emmett in the TV show Switched at Birth. He earned early success in his breakout role in The Sandlot 2, playing Sammy 'Fingers' Samuelson. Berdy is bi-lingual, fluent in both American Sign Language (ASL) and English.