Sea Hunt: Season 4, Episode 27

Dark Evil (8 Jul. 1961)

TV Episode  |   |  Action, Adventure
Your rating:
    1 2 3 4 5 6 7 8 9 10 -/10 X  
Ratings: 6.9/10 from 8 users  
Reviews: 1 user

While Mike is in Nassau on a salvage job, two of his friends catch and eat a strangely poisonous fish for breakfast, which causes severe hallucinations that trigger suicidal and homicidal tendencies.



(teleplay and story), (teleplay)
0Check in

10 Best Back-to-School TV Shows

Dust off your varsity jacket and get excited for fall with our list of the 10 best back-to-school TV shows.

Visit our Family Entertainment Guide

Related Items

Search for "Dark Evil" on

Connect with IMDb

Share this Rating

Title: Dark Evil (08 Jul 1961)

Dark Evil (08 Jul 1961) on IMDb 6.9/10

Want to share IMDb's rating on your own site? Use the HTML below.

Take The Quiz!

Test your knowledge of Sea Hunt.
« Previous Episode | 144 of 155 Episodes | Next Episode »


Episode complete credited cast:
Margie Regan ...
Lucille Brandon
Michael Whalen ...
Oliver Brandon
Peter Forster ...
Dr. Alan Clark
James Forrest ...
Police Inspector Lyons


While Mike is in Nassau on a salvage job, two of his friends catch and eat a strangely poisonous fish for breakfast, which causes severe hallucinations that trigger suicidal and homicidal tendencies.

Plot Summary | Add Synopsis


Action | Adventure




Release Date:

8 July 1961 (USA)  »

Company Credits

Show detailed on  »

Technical Specs


Sound Mix:

(Westrex Recording System)

Aspect Ratio:

1.33 : 1
See  »

Did You Know?


Above water, character Oliver Brandon's body is that of a middle-aged man with flabby skin and sagging breasts; however, his skin diving stunt double is clearly a younger man in excellent physical shape. See more »


Mike Nelson: [narrating] The fish looked like good eating, but it made a deadly breakfast. It was to have a weird effect on these two friends of mine. I thought that I had no part in their affairs that morning, yet within a few hours, because of that fish, they both tried to kill me.
See more »

Frequently Asked Questions

This FAQ is empty. Add the first question.

User Reviews

Sea Hunt - Dark Evil
17 February 2015 | by (United States) – See all my reviews

Mike must help rescue a potential love interest's father (Michael Whalen) from becoming a "human bomb" after he and his daughter (Margie Regan) ingest a fish they dived for in the water near Nassau. The tropical poisonous fish (nicknamed "dark evil") causes those who eat it to fall prey to delusions, homicidal urges, and suicidal desires. Although Mike will be able to get Lucille (Regan) to a doctor in time for treatment to cull her onset of psychosis (she attacks him while they are "sponge diving"), Lucille's wealthy philanthropist father, Oliver (Whalen) isn't so lucky. After demolishing his vacation home, he nearly stabs two beauties swimming nearby him, as he lunged from the ocean floor towards them, bumping his noggin on the bottom of their boat! Last but not least, Oliver finds a ramp with explosives, bops the guard on the head, and takes a canister of nitroglycerin! So Mike with help from the local police will need to pursue Oliver's whereabouts before he blows something or someone (or multiple someones) to smithereens. Besides a frustrating wobbly print of this episode of Sea Hunt, the reaction to the fish produces unintentional laughs as Oliver looks like an escaped lunatic. There's a dependence on using a fake screen in a studio to depict public on a beach in scenes with Margie and Michael (and one scene with Lloyd Bridges and Margie on his boat) that takes some authenticity away from the outdoors setting. Still the diving scenes always deliver, and the plot is plenty suspenseful enough…the idea that a fish causes those that eat it to freak out and go ballistic is certainly a disconcerting thought! The canister falling towards the ocean floor as Mike Nelson dives to retrieve it is quite a hair raiser even if the result is never in doubt. Lloyd's Mike even gets to flirt with Margie's Lucille so that bit of back and forth has its charm as well.

0 of 0 people found this review helpful.  Was this review helpful to you?

Message Boards

Recent Posts
DVD Release, please!!! waldenpond88
Llloyd Bridges saying 'Huh.' csimpkins53
Sea Hunt on T.H.I.S. TV Niki_Catalina
Sea Hunt DVD Sets jimerson-1
Mike Nelson's Boat hstcmc
The Legend Of The Mermaid PhantomHelmsman
Discuss Dark Evil (1961) on the IMDb message boards »

Contribute to This Page

Create a character page for: