Complex sentence: On January 23,2012, Burton guest starred on the ABC crime television series "Castle", portraying a reality television star named Kay Cappuccio who is accused of the murder of a famous dog trainer.
Split into simpler sentences: On January 23,2012, Burton guest starred on the ABC crime television series "Castle". She portrayed the role of a reality television star named Kay Cappuccio who is accused of the murder of a famous dog trainer.