Just in from Dr Who News Online
S4: David Troughton cast
News Dated: 10/1/2008
Patrick Troughton’s son will guest star in Series Four of Doctor Who.
Classic Series actor and son of The 2nd Doctor (Patrick Troughton); David Troughton has been confirmed as having a guest role in Series Four of Doctor Who, according to Issue #391 of Doctor Who Magazine.
David’s character will appear later in Series Four, possibly the last episode.
DWO can reveal he will be playing ‘Professor Hobbs’ in the new series.