<Li> Chester Rushing as Tommy H., former friend of Steve, and boyfriend of Carol . </Li> <Li> Chelsea Talmadge as Carol, former friend of Steve, and girlfriend of Tommy . </Li> <Li> Robert Walker - Branchaud as an agent of Hawkins Laboratory who disguises himself as a repairman . </Li> <Li> Cynthia Barrett as Marsha Holland, Barbara Holland's mother . </Li>

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