Graham Chapman

The Colonel / Self (uncredited)

Colonel (uncredited)

Self (archive footage) (uncredited)

Various

King Arthur / Voice of God / Middle Head / Hiccoughing Guard

Wise Man #2 / Brian Cohen / Biggus Dickus

Self (archive footage)

Various Roles

Self (archive footage)

Brother / Policeman / Defence attorney / British pedestrian / Mr. Harrison (Apricot) / The Colonel / 'Hell's Grannies' policeman / Jimmy Blankensop / Sir Edward Ross / Restaurant patron #1 / Letter Writer / Oliver St. John Mollusk / Mountie / Town Guild Lady

Captain Yellowbeard

Oxford Crew

Fromage

Joachim von Ribbentrop (archive footage) (uncredited)

Roddy

Arthur Harris

News reader

Self / Various (archive footage)

Sir George / Queen

Various Roles (archive footage) (uncredited)

Self / Brian (archive footage) (uncredited)

Self (archive footage)

Chairman (uncredited)

Self - Various Roles