Colin Salmon has boarded the CW's superhero pilot, Arrow.

The show will follow former billionaire playboy Oliver Queen, who after being marooned for five years on a deserted island, returns with a mysterious agenda and lethal set of new skills that he uses in a war on crime. The actor will play Walter Steele, a former business associate of the late Robert Queen and the No. 2 exec at Queen Consolidated who married Moira Queen following her husband's death at sea and the disappearance of her son, Oliver.

RELATED: Injustice Review: Superman Unleashed Falls Flat

Greg Berlanti is penning the show with Marc Guggenheim and Andrew Kreisberg helping produce. David Nutter is directing the pilot.

The actor just wrapped up his part in Resident Evil: Retribution.

This project is still in development.