Complex sentence: McCarthy again played Spicer on April 15,2017, dressed as the Easter Bunny and talking to a group of children, and on May 13,2017, when she hosted the show.
Split into simpler sentences: McCarthy again played Spicer on April 15,2017, dressed as the Easter Bunny and talking to a group of children. She played Spicer another time on May 13,2017 when she hosted the show.