Jean Sagal

Double Trouble is an American sitcom that aired from 1984 to 1985 on NBC. The series stars identical twins Jean and Liz Sagal as Kate and Allison Foster, two teenagers living under the watchful eye of their widowed father. The show was considered an updating of the "twins in mischief" concept seen in films like The Parent Trap or the Patty Duke Show of the 1960s.

It's 1961, two years after the original Grease gang graduated, and there's a new crop of seniors and new members of the coolest cliques on campus, the Pink Ladies and T-Birds. Michael Carrington is the new kid in school - but he's been branded a brainiac. Can he fix up an old motorcycle, don a leather jacket, avoid a rumble with the leader of the T-Birds, and win the heart of Pink Lady Stephanie?