Kate in Tremors 2

Dr. Kate Riley is the fourth protagonist of Tremors 2: Aftershocks. Kate is also the main female protagonist and Earl Bassett's love interest.


Kate is a middle-aged single geologist. Her only known scientific contribution to date was dating a fossil (of which she believes is that of a Graboid) to the Precambrian Era. Later sources persist that she did this incorrectly saying that they are instead from the Dovien Era. Whether she was right or not she has confirmed their existence as Earth creatures.

As of 1996, Kate was working on surveying for an oil field in Chiapas, Mexico when the Graboids attacked. She said that only she, Pedro and Julio were the only ones left at the oil base. It was eventually revealed that she was the (fictional) Miss October, 1974 that Earl used to pine for (and kept hung up on his wall to remind him that some things he can never have).

Further it is a working presumption that Dr. Riley was employed directly by the oil company as part of a larger land survey for resource exploitation. Following the Graboid attacks, Kate Riley was one of the few remaining on-site personnel. Though largely safe from the Graboid attacks, Kate found difficulty once she discovered Shriekers, the main antagonists of the film. After they killed off all of the Shriekers, she and Earl fell in love. They later married and opened a very successful Graboid theme park with Grady Hoover.


  • In the original script for the film, her character was known as 'Kate White', a mistake which was left into the film's credits.
  • Fans continue to ask about the “Miss October, 1974” seen in Tremors 2.
    • The writers decided on 1974 because it made the Kathy character about the right age for Earl (about 40).
      • They then cast Helen Shaver as Kathy. But as it turns out that the real Miss October, 1974, Ester Cordet, doesn't look remotely like Helen. So, instead they searched through Playboy files and selected the Playmate actually seen in the film, Miss September, 1970, Debbie Ellison.


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