Archie Bell

Archie was the name of the "very strange man" who ran Torchwood 2 from its base above a bank in Glasgow.

"Old Tartan Archie" did not have the hang of computers and exchanged bizarre emails with Ianto. The words used were "interesting and in the wrong context" and he refers to himself in the third person. His ineptitude with email caused him to send a picture of the Loch Ness monster to the Glasgow Herald. (TWN: The Twilight Streets)

Donna's World
During the events in Donna’s World, (DW: Turn Left), Archie would have been the only person left with the expertise to defend Earth against future invasions.

Behind the Scenes
Jack Harkness first mentioned Archie (not by name) in Everything Changes. John Barrowman has suggested at a public appearance that if he ever appeared on-screen, David Tennant should play him, wearing heavy make-up.