Complex sentence: Julia Brown is a Scottish actress is best known for her portrayal of the character Keri Summers in the CBBC series "M.I. High" and was first introduced as Keri in series 7 episode 1.
Split into simpler sentences: Julia Brown is a Scottish actress is best known for her portrayal of the character Keri Summers in the CBBC series "M.I. High". And was first introduced as Keri in series 7 episode 1.