In 2016, he appeared briefly in Warcraft, the film adaptation of the video game Warcraft, in which he was credited as Warrior, as well as joining the main cast of Starz TV's Power, for season three, as Dean. Callan has also completed the horror film Delirium, and is in post-production for the films Beyond Skyline, the sequel to the cult-classic Skyline, and Desolate, a drama based on a family of farmers living in a dystopian future.
In 2016, Callan appeared in both "Warcraft" as a Warrior and "Power" for season three as Dean. He has also completed filming "Delirium" and is currently working on the films "Beyond Skyline," the sequel to "Skyline," and "Desolate," a drama about farmers living in a dystopian future.