She is known for her horror film roles such as Chernobyl Diaries (2012), The Vatican Tapes (2015) and Paranormal Activity: The Ghost Dimension (2015), for her television roles such as the Syfy fantasy series The Magicians, and for her work in the internet sketch group 5-Second Films.

[5][6][7][8] In 2013, she was cast in the 2015 demonic possession drama film The Vatican Tapes playing the possession victim Angela Holmes;[9][10] Dudley's portrayal in the film earned positive notice from The New York Times reviewer Nicolas Rapold.

[11] Dudley's other notable movies include Chillerama, Paranormal Activity: The Ghost Dimension,[12] Dumbbells, The Barber,[13] and Dude Bro Party Massacre III.

Dudley's television roles include appearances on CSI: Miami and Arrested Development.

In August 2015, she earned the regular role of Alice in Syfy's drama fantasy series The Magicians.