Frank Cannon is an overweight, balding ex-cop with a deep voice and expensive tastes in culinary pleasures; he becomes a high-priced private investigator.


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5   4   3   2   1  
1976   1975   1974   1973   1972   1971  
Nominated for 3 Golden Globes. Another 2 wins & 3 nominations. See more awards »
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Complete series cast summary:
 Frank Cannon (120 episodes, 1971-1976)


The weekly adventures of Frank Cannon, an overweight, balding ex-cop with a deep voice and expensive tastes in culinary pleasures, who becomes a high-priced private investigator. Since Cannon's girth didn't allow for many fist-fights and gun battles (although there were many), the series substituted car chases and high production values in their place. Written by Marty McKee <>

Plot Summary | Add Synopsis


Action | Crime | Mystery | Drama


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Release Date:

14 September 1971 (USA)  »

Also Known As:

Кеннон  »

Company Credits

Show detailed on  »

Technical Specs


(120 episodes)

Sound Mix:


Aspect Ratio:

1.33 : 1
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Did You Know?


According to the book "Creating the Filmation Generation", Lou Scheimer was interested in producing an animated spin-off called "Young Cannon" in the 1972-1973 season. They got the rights from Quinn Martin, but Fred Silverman at CBS didn't buy it See more »


[repeated line]
Frank Cannon: My name's Frank Cannon, I'm a private investigator.
See more »

Crazy Credits

In all five seasons, the credits are shown in capital and lower case letters. See more »


Referenced in Mystery Science Theater 3000: Girl in Gold Boots (1999) See more »

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User Reviews

Another Excellent Detective series of the 70's.
28 January 2003 | by (London) – See all my reviews

Cannon was an excellent tv movie and resulted in a successful series that ran for 5yrs.

William Conrad was brilliant as the overweight Private Eye Frank Cannon.

He proved that you didn't have to be good looking or a super hero to be a good detective.

So he was fat, so what, he was an everyman detective and an ordinary guy that you might see in the street who happened to be overweight.

Despite this he proved he was intelligent, quick witted and he had a number of smarts to outwit his opponents, but he was also capable of looking after himself physically when the situation arose (he was an expert in karate, being overweight does not mean you can't handle the rough stuff when you need to, my judo instructor was 19st, the same weight as Cannon, but boy could he move fast when performing various judo throws and moves).

I am 19st myself, but I know that I can look after myself when need be, with my experience of judo.

Remember Cannon was cunning and knew that his size might get in the way of the physical rough stuff, so he planned his moves carefully and used short swift karate & judo moves to gain the upper hand of his opponents.

He proved that a fat man could look after himself and that he was more than capable when it was needed to deal with violent crooks.

If he was ever attacked and beaten up, he usually got his revenge at the end of the story one way or another.

Also it has to be remembered that Cannon carried a gun. He was an expert with firearms and an excellent marksman (as was William Conrad in real life)and was a competent driver in his Lincoln Continental.

All in all Cannon was another good tv detective series of the 70's, which sadly has given way to the over violent and over done crime films & television series of today, which to my mind lack story content of these old tv detective series of yesterday, which had good story content without the need for over the top violence.

I hope to see video releases of this series soon.

18 of 19 people found this review helpful.  Was this review helpful to you?

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