One of the plays listed on Rupert’s CV from when he was studying with LAMDA. The play was written by Robert Holman, and premiered by the RSC in 1984 (Wikipedia).
Rupert’s character name was Edward Longresse, and the director was Gari Jones.
I’m not entirely sure of the year, but I’m guessing the first half of 2003 (i.e. at the end of the 2002-03 academic year).