Movies:
- "Harry Potter and the Half-Blood Prince" (2009): Appiah played the role of a Hogwarts student.
- "StreetDance 3D" (2010): Appiah had a supporting role in this dance-oriented film.
- "The Cabin in the Woods" (2012): Appiah appeared as one of the victims in this horror movie.
- "The Last Airbender" (2010): Appiah played the character of Ty Lee in this live-action adaptation of the popular animated series.
- "The Darkest Minds" (2018): Appiah portrayed the role of Ruby Daly in this sci-fi thriller movie.
Television Shows:
- "Casualty" (2008): Appiah made an appearance in an episode of this long-running British medical drama.
- "The Sarah Jane Adventures" (2009): Appiah played the recurring character of Rani Chandra in this children's science fiction series.
- "Misfits" (2009-2011): Appiah portrayed the role of Sally in the first two seasons of this comedy-drama series about young people with superpowers.
- "Silent Witness" (2011): Appiah made a guest appearance in an episode of this British crime drama series.
- "The Aliens" (2016): Appiah played a leading role in this six-part British science fiction series.