Easterbrook was born in Los Angeles. She was adopted when she was nine months old; her adoptive parents, Carl and Helen Easterbrook, raised her in Arcadia, Nebraska. She attended and graduated from Kearney High School and Stephens College. Her father was a music professor and her mother was an English teacher at the University of Nebraska at Kearney. Easterbrook appeared in about a dozen feature films and over 300 television episodes. One of her earlier successes was in 1980 as Rhonda Lee beginning with season six of Laverne & Shirley. The role of Rhonda was part of the show's change of locale from Milwaukee to Hollywood. Easterbrook performed as Debbie Callahan in the Police Academy film series. Easterbrook told author Paul Stenning, "The funny thing is, that's not me at all. I'd never played tough. I'd played all kinds of things, bu...