She is the adopted daughter of Korie and Willie. Rebecca is in her 20s and an important part of this family. She actually started out as a foreign exchange student. Rebecca is from Taiwan. She has not been on the show before, but this season will be stepping it up and joining the cast.
Rebecca ended up staying as a foster child with the Robertson's and now years later she is part of the family. Korie and Rebecca are really close and she seems to fit right in with them.
They have been teasing that a new Robertson is joining the cast this season and Rebecca is the one. It is possible that there are others, but if so spoilers are not out about it yet. She will be great on the show! She also has a new blog and clothing store with her mom and you can read more about it here.
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