Melissa Crystal O'Neil (born July 12, 1988) is a Canadian actress and singer. She is known for her roles as Officer Lucy Chen on the ABC police procedural drama series The Rookie and Two / Rebecca / Portia Lin on the Syfy scifi series Dark Matter. In 2005, she won the third season of Canadian Idol, the first Canadian female to have won.

• The Rookie (2018)

  
• Dark Matter (2015)