- June Leech
- research assistant / researcher (13 episodes, 1969)
- Queen Elizabeth II
- by gracious permission of: Leonardo da Vinci Drawings and Mantegna's Triumph of Caesar / by gracious permission of: Leonardo da Vinci and Holbein drawings from the Royal Library, WIndsor / by gracious permission of: Self-portrait by Rubens and Ignatius Loyola by Zarbaran reproduced / by gracious permission of: The Music Lesson by Vermeer and the drawing by Leonardo da Vinci (4 episodes, 1969)
- Elizabeth Baron
- producers' assistant (1 episode, 1969)
- Joachim Blauel
- contribution: photographs (1 episode, 1969)
- Jacques-Ernest Bulloz
- contribution: photographs (1 episode, 1969)
- Pasquale De Antonis
- contribution: photographs (1 episode, 1969)
- R.B. Fleming
- contribution: photographs (1 episode, 1969)
- Adolphe Giraudon
- contribution: photographs (1 episode, 1969)
- Andre Held
- contribution: photographs (1 episode, 1969)
- David Heycock
- production assistant (1 episode, 1969)
- Hans Hinz
- contribution: photographs (1 episode, 1969)
- Maggie Houston
- producers' assistant (1 episode, 1969)
- Carol Jones
- producers' assistant (1 episode, 1969)
- A.F. Kersling
- contribution: photographs (1 episode, 1969)
- Jacob Pleydell-Bouverie
- permissions: other paintings, drawings, sculptures and locations (1 episode, 1969)
- William H. Scheide
- permissions: paintings, drawings and sculpture [private collection] (1 episode, 1969)
- Christine Whitehead
- researcher (1 episode, 1969)