Best known for playing the role of Victor Frankenstein in the horror-drama series, Penny Dreadful, Harry Treadway is an English TV and film actor. An alumnus of the prestigious National Youth Theatre, Treadaway made his professional debut with Brothers of the Head, a feature film about conjoined twin brothers in 2005.

Since his debut, Treadaway has been constantly juggling work in films and TV; following his debut, he starred in a couple of TV films like Marple: "Sleeping Murder" and Recovery, before eventually returning to star in a commercial feature film Control (2007) where he played the role of Stephen Morris. His other notable films include City of Ember (2008), Albatross (2011), Truckers (2013), and Gringo (2018), an American action comedy directed by Nash Edgerton.