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The Energy Eater 

Carl realizes that Matchemonedo, a monstrous restless bear-like spirit, is eating up the structure of a new hospital built over its resting place and draining patients of their protein. He asks Native American Jim Elkhorn for help.


Alexander Grasshoff (as Alex Grasshoff)


Jeffrey Grant Rice (created by) (as Jeff Rice), Arthur Rowe (teleplay) | 2 more credits »




Episode cast overview, first billed only:
Darren McGavin ... Carl Kolchak
Simon Oakland ... Tony Vincenzo
William Smith ... Jim Elkhorn
Elaine Giftos ... Nurse Janis Eisen
Tom Drake ... Don Kibbey
Michael Strong ... Walter Green
Robert Yuro Robert Yuro ... Detective Webster
Joyce Jillson ... Diana Lanier
Jack Grinnage ... Ron Updyke
Ruth McDevitt ... Emily Cowles
John Alvin ... Dr. Carrie
Robert Cornthwaite ... Dr. Hartfield
Michael Fox ... Frank Wesley
Melissa Greene Melissa Greene ... 1st Girl
Dianne Harper Dianne Harper ... 2nd Girl


Kolchak faces another Native American monster, this one known as the Matchemonedo, when he learns of a series of mishaps taking place in a newly opened hospital. The construction of the hospital has awakened Matchemonedo, an invisible manifestation that causes ruptures in the building's constitution, electrical outbursts, and deaths that are seemingly caused by electrocution. Kolchak enlists the help of a reluctant Indian shaman to combat the rampaging force. Written by acidxian

Plot Summary | Add Synopsis







Release Date:

13 December 1974 (USA) See more »

Company Credits

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Technical Specs


Sound Mix:




Aspect Ratio:

1.33 : 1
See full technical specs »

Did You Know?


Kolchak and Jim Elkhorn are doing research on Matchemonedo, The Energy Eater entity, and are reading diaries and logs of pioneers who encountered or mentioned the entity. Elkhorn fluently reads and translates from a French passage written by a French priest who refers to it. William Smith, who played Jim Elkhorn, is fluent in Russian, French, German , and Serbo-Croatian, as well as English. He learned foreign languages while serving as an Intelligence Specialist for the U.S. Air Force during the Korean War. See more »


When the repairmen are applying plaster to the "walls" they move. The walls are clearly canvas or hard paper. See more »


Carl Kolchak: They were loading unmarked boxes from an unmarked truck, but for me, everything had 'double-cross' written all over it.
See more »


Edited into Kolchak: Crackle of Death (1974) See more »

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User Reviews

The Matchemondeo
10 November 2014 | by AaronCapenBannerSee all my reviews

Carl Kolchak(Darren McGavin) investigates the mysterious deaths and strange occurrences surrounding the construction and opening of a new lake-front hospital, which turn out to be the result of the awakened spirit of a Native American god named the Matchemondeo, who is angry that his roaming/resting place has been disturbed, and will stop at nothing to destroy the hospital by all means at its disposal. Only with the help of a local Indian shaman(played nicely by William Smith) can Carl defeat/placate this threat. Another far-fetched premise helped by the usual effective humor of the series, and a genuine sense of menace posed by the title entity.

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