CAGEMATCH » Wrestlers Database » Jack O'Brien

Jack O'Brien

Also known as Dr. O'Brien, Demon

Personal Data

Birthday:

08.02.1910

Birthplace:

Fossola, Carrara, Italien

Day of death:

24.09.1982 (at the age of 72)

Gender:

male

Height:

5' 5" (166 cm)

Weight:

180 lbs (82 kg)

Background in sports:

Baseball

Career Data

Alter egos:

Demon
Jack O'Brien
a.k.a. Dr. O'Brien

Roles:

Singles Wrestler
Promoter

Beginning of in-ring career:

1934

End of in-ring career:

1959

In-ring experience:

25 years

Nicknames:

"Roughhouse"

Signature moves:

Tirabuzon

Tidbits

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Number of comments: 1

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Average rating: 9.00 [1]

Average rating in 2026: 9.00 [1]

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Latest comments of the CAGEMATCH inmates

PEW565 wrote on 30.05.2026:

[9.0] "Unfortunately there is no footage of this legendary wrestler. He was a major star in the first decade and a half of CMLL. First in the Lightweight division then moving to the Welterweight division which was the most prestigious at the time. He had a legendary rivalry with El Santo and Gory Guerrero being one of the few to defeat El Santo in singles competition."