Dugald Ronald Letham (10 September 1949 – 27 March 2008) was a Scottish actor.
Letham originally trained as a teacher at the Jordanhill College, Glasgow, before enrolling at the Royal Scottish Academy of Music and Drama.
Letham had recurring roles in television shows Atletico Partick as Gazza, Hamish Macbeth as Peter the Fireman and Ain't Misbehavin' as Snowy McGraw.
He also made three separate appearances on both Taggart and The Bill, playing a different character on each occasion.
His final role was as Isa's estranged husband Harry in the sitcom Still Game, appearing in three episodes between 2002 and 2006, when his character was killed off.