Jamie Campbell Bower & Robert Sheehan: 'Mortal' Men!

Jamie Campbell Bower shows off his tattooed arms on the set of his film The Mortal Instruments: City of Bones on Thursday (August 23) in Toronto, Canada.

The 23-year-old actor has the temporary tattoos for his role as Jace Wayland in the fantasy film.

PHOTOS: Check out the latest pics of Jamie Campbell Bower

Robert Sheehan and Jemima West, who play Simon Lewis and Isabelle Lightwood respectively, were spotted on set playing around on a Macbook laptop.

30+ pictures inside of Jamie Campbell Bower and Robert Sheehan on set…