An evil scientist implants the brain of Michael, a murdered high school student, into a Tyrannosaurus. He escapes, wreaks vengeance on his high school tormentors, and is reunited with his sweetheart Tammy.


Stewart Raffill
2,539 ( 1,981)





Cast overview, first billed only:
Denise Richards ... Tammy
Theo Forsett Theo Forsett ... Byron
Paul Walker ... Michael
Ellen Dubin ... Helga
Terry Kiser ... Dr. Wachenstein
George 'Buck' Flower ... Norville (as Buck Flower)
Ken Carpenter ... Neville
George Pilgrim ... Billy
Sean Whalen ... Weasel
J. Jay Saunders ... Sheriff Black
John Edmondson John Edmondson ... Karl
John Franklin ... Bobby
Michele Maika ... Michelle
Ken Chandler Ken Chandler ... Dad
Shevonne Durkin ... Wendy


An evil scientist implants the brain of Michael, a murdered high school student, in an animatronic Tyrannosaurus. He escapes, wreaks vengeance on his high school tormentors and is reunited with his sweetheart Tammy. Together, the couple try to elude the mad scientist and the police and find a more appropriate vessel for Michael's brain. Written by D.A. Kellough <>

Plot Summary | Add Synopsis


He's The Coolest Pet In Town!


Comedy | Sci-Fi


PG-13 | See all certifications »

Parents Guide:

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Did You Know?


To save on money, all the locations were within 25 minutes of the director's house. During the production there was a big fire that destroyed lots of properties. Smoke can be seen in the background in some scenes. See more »


The camera and dolly are reflected in the side of the black car when the T-Rex goes to attack Billy while he's having sex with the girl. See more »


Tammy: Is that really you in there? Oh Michael, what have they done to you!
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Alternate Versions

In 2017, a 35mm print of an alternate, pre-censorship cut of the film was discovered, under the title Tanny and the Teenage T-Rex. This version features the long-rumored scenes of gore and extreme violence that were sloppily edited from the film in order to attain a PG-13 rating. Scenes include various moments of excessive bloodshed and a graphic brain transplant, as well as a great deal more profanity. In total it runs six minutes longer than the cut that appeared on VHS in 1994. Vinegar Syndrome scanned and restored the film at 4K resolution, and gave it a limited theatrical re-release, and Blu-Ray/Ultra HD release in the fall of 2019. See more »


Featured in Movie Nights: Tammy and the T-Rex (2011) See more »


Slow Song
Written by Conrad, Bryant and Smith
Performed by He's Dead Jim
Published by Yankee Zulu Music (BMI)
See more »

User Reviews

Excellent Trash Movie
14 June 2003 | by ortega-1See all my reviews

I bought this film merely because of Denise Richards, who I think is one of the most beautiful actresses in Hollywood. I was deceived by the title and the picture, both of which made me think it was a movie for children. Boy, was I wrong. This is a Trash movie, what made me glad that I bought it. Now I can place it among the other titles of my B-Movies collection. Is this a bad movie? Of course it is. Surprisingly as it may be for most people, it was made that way ON PURPOSE. And, what may sound even more surprising is that some people (such as myself) really do appreciate this genre of film. Trash, B-movie, whatever you call it, are based in 4 concepts: Hot chick (Denise Richards couldn't be more appropriate), bad acting, cheesy special effects and a ridiculous script. This movie succeeds in all of them.

Thus, considering the logic of those who are into Trash movies, this one deserves an 8 or 9 out of 10. For the rest of you, who just can't get what is to enjoy in a truly bad movie, I guess it would be 1 out of 10, considering a conventional rating system.

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Release Date:

21 December 1994 (USA) See more »

Also Known As:

Tammy and the T-Rex See more »


Box Office


$1,000,000 (estimated)
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Company Credits

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Technical Specs


| (R-rated)

Sound Mix:




Aspect Ratio:

1.85 : 1
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