Melissa Roxburgh is a Canadian actress. She is known for her roles in Diary of a Wimpy Kid: Rodrick Rules and Diary of a Wimpy Kid: Dog Days , as Ensign Syl in the film of 2016, Star Trek Beyond, and as Olivia Tanis in The Marine 4: Moving Target. She currently plays Michaela Stone in the television series of NBC, Manifest, which began in 2018.