Richard Todd as Rob Roy MacGregor

Glynis Johns as Helen Mary MacPherson MacGregor

James Robertson Justice as Duke Campbell, of Argyll

Michael Gough as Duke of Montrose

Finlay Currie as Hamish MacPherson

Jean Taylor Smith as Lady Margaret Campbell MacGregor, of Glengyll

Geoffrey Keen as Killearn

Archie Duncan as Dugal MacGregor

Russell Waters as Hugh MacGregor

Marjorie Fielding as Maggie MacPherson

Eric Pohlmann as King George I

Ina De La Haye as Countess von Pahlen

Michael Goodliffe as Robert Walpole

Martin Boddey as General Cadogan

Ewen Solon as Maj. Gen. Wightman

Howard Douglas as Donald Urquhart

May Hallatt as Ballad Hawker

Malcolm Keen as Duke of Marlborough