Question: Which child actress began her career in 2006 and also stared in the television series The Emperor: Owner of the Mask?
Sentence (from "Kim So-hyun"): She began her career as a child actress in 2006 and initially gained public attention for playing a villainous young queen-to-be in "Moon Embracing the Sun" (2012) and a girl who falls into tragedy in "Missing You" (2013).
Relevant evidence: Yes