Barrowman has also been involved with a Dreamers Acting Workshop. He has gone back to his old high school in Joliet Illinois and a few other schools around the US and worked with aspiring young performers. He provides several scholarships for the workshop where he provides constructive criticism to the kids such as, "You don't come to the audience. You bring the audience to you. You do it by refining your movement."
Some other performers who graduated from West Joliet High School include Andy Dick and Anthony Rapp. Over at rival East Joliet High on the other side of town they must have taught 'Dancing on the Ceiling' as that's where Lionel Ritchie got his diploma.
PS: According to IMDB Brian Minchin has been signed on as script editor for Torchwood. Minchin has been involved with many BBC Wales productions over the past few years.