Sydney Ellen Lucas (born July 11, 2003)[1] is an American actress with credits in musical theatre, film and television. She is best known for her portrayal of Small Alison Bechdel in both the original Off-Broadway and Broadway productions of Lisa Kron and Jeanine Tesori's musical Fun Home; she won an Obie Award and Theater World Award and received nominations for a Drama Desk Award and a Tony Award for Best Featured Actress in a Musical for her performance. She most recently starred in the main cast of AMC's western drama television series The Son as Jeannie McCullough.