Cannon (1971–1976)
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The Endangered Species 

Cannon's friend, a yacht builder, is framed for killing his son on a hunting trip.


Robert Douglas


Del Reisman, Edward Hume (developed for television by)


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Episode cast overview:
William Conrad ... Frank Cannon
Carl Betz ... Arthur Bellamy
Katherine Justice ... Liza Carter
Billy Green Bush ... Gardner Finney
Neva Patterson ... Judge Eleanor Cable
Andrew Duggan ... Bill Coates
Hal England Hal England ... Marvin Forman
Olan Soule ... Westervelt
Steve Vaughan Steve Vaughan ... Joe Horgan
Pat Patterson Pat Patterson
Joel Lawrence Joel Lawrence ... Bellamy Paralegal (as J.H. Lawrence)
Jack Warford
Richard Di Sante Richard Di Sante
Ted Dudomaine Ted Dudomaine ... (as Ted Du Domaine)


Cannon's friend, a yacht builder, is framed for killing his son on a hunting trip.

Plot Summary | Add Synopsis


Action | Crime | Drama | Mystery







Release Date:

13 December 1972 (USA) See more »

Company Credits

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Technical Specs


Sound Mix:




Aspect Ratio:

1.33 : 1
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Did You Know?


The helicopter seen here (N7822S) is a 1967 Bell 47G-3B-1, serial number 6613. See more »


Saying "... up topside." is incorrect as it is a redundancy. To go topside is to go up. Going below is to go down. See more »


Frank Cannon: I'm a sailboat man myself, but even so, I know what's going on with him up there. To get out in God's great open space, the sea and the sky and the feel of spray on your face. It's better than all the tranquilizers in the world.
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User Reviews

Pretty good--though there isn't a lot of suspense with this one when it comes to who committed the killing.
20 August 2013 | by MartinHaferSee all my reviews

Unlike some episodes of detective shows, this one starts with showing a guy (Carl Betz) murder someone--so you know from the outset that the man soon accused of killing his son (Andrew Duggan). But you soon realize just how bad the frame-up is when you learn that the murderer is the lawyer who is supposed to be working to prove the father is innocent! When Cannon gets involved, he soon notices that this lawyer already is talking as if his client is guilty--and naturally this gets out favorite rotund detective thinking. However, this all occurs only about 10 minutes into the show--so you know it will take another 40 minutes for him to put all the pieces together! You know, just once, I'd love for a detective to solve the crime in 10 or 15 minutes--just to keep the audience guessing! During the intervening time, Cannon goes big horn sheep hunting, delivers his trademark 'death hug' where he squeezes his victim into unconsciousness, gets dynamite tossed at him (really!) and discovers a skeleton! All in all, a very eventful 40 minutes.

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