Robert Sean Leonard (born February 28, 1969) is an award-winning American actor.
He has regularly starred in Broadway and off-Broadway productions, but is most known for his roles on House and in Dead Poets Society.
Next to Normal tells the story of Diana Goodman, a suburban wife and mother who suffers from bipolar disorder and is haunted by the loss of her infant son. The effects on her family have been profound. Her doctors suggests hypnosis and Electric Convulsive Therapy in an attempt to manage her condition.