About a ruthless Roller Derby star (Claudia Jennings). Stern: Louis Quinn. Mickey: Betty Anne Rees. Jennifer: Roberta Collins. Greg: Alan Vint. Nick: Jay Varela. Donna: Candice Roman. Beverly: Charlene Jones. Angie: Maxine Gates. Marshall: Joe E. Tata. Karen's Mother: Kathleen Freeman. Duane: Dennis Redfield. Vernon Zimmerman directed.