She was nominated for the Critics' Choice Television Award for Best Supporting Actress in a Drama Series for the latter.

[3] Watson's middle name "Kelechi" means "Thank God" in Nigeria's Igbo language.

She appeared in a play at the American Airlines Theatre in New York City by playwright Richard Greenberg entitled A Naked Girl on the Appian Way in 2005.

[7] Watson played Andrea Vogel in the Fred Rogers biopic A Beautiful Day in the Neighborhood alongside Tom Hanks in 2019.

[8] In September 2022, she appeared in the European premiere of Eureka Day at The Old Vic theatre in London.