Sally Barker sings backing vocals on "Columbus (Didn't Find America)" and "Captains". Vladimir Vega performs pan pipes on "Columbus (Didn't Find America)", including prominently in the intro of the song, as well as on "The Hunter" and "Santiago", also performing backing vocals on the latter with Matt Clifford, who also performed backing vocals on "Columbus (Didn't Find America)" which he also played keyboards on, as well as on "Exile". "The Well" and "The Galway Farmer" feature pipes from Nick Scott, accordion from Sarah Allen and whistle from Biddy Blythe, who also plays flute on "The Galway Farmer".