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The Madman of Lab Four (1967)

1967 • 1h 30m • Comedy
IMDb5.2/10212TMDB59%18Rotten Tomatoes—Metacritic—
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On September 25, 2026
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Most Popular The Madman of Lab Four Cast Members

Robert Dalban is the most popular The Madman of Lab Four cast member right now, with a Popularity Score of 1.32. Updated September 27, 2026.

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Cast
Popularity
1

Robert Dalban

Merchant, spy in the laboratory/64 years during filming
1.3
2

Pierre Brasseur

Father Ballanchon/61 years during filming
1.3
3

Jean Lefebvre

Eugène Ballanchon, scientific researcher, single/48 years during filming
1.3
4

Paul Préboist

Agent/40 years during filming
1.3
5

Michel Serrault

Mr. Granger, director of the scientific laboratory/39 years during filming
1.2
6

Bernard Blier

Mr. Beauchard, executive secretary linked to a gang/51 years during filming
1.1
7

Sabine Sun

Baroness/27 years during filming
1.1
8

Henri Virlogeux

Scholar/43 years during filming
1.0
9

Mario David

Mario/40 years during filming
0.9
10

Margo Lion

Mrs. Ballanchon, Eugène's mother
0.9
11

Pierre Tornade

DST inspector/37 years during filming
0.8
12

André Chaumeau

Baron/43 years during filming
0.6
13

Maria Latour

Régine, Mr. Beauchard's spy/24 years during filming
0.6
14

Jean Franval

DST inspector/41 years during filming
0.5
15

Alain Janey

Fred/41 years during filming
0.5