Hannah is the daughter of Andrea Zuckerman and Jesse Vasquez. In the original series, during which the character was born, Hannah was portrayed by infants. In the pilot episode of the fourth series, 90210, she was portrayed by Hallee Hirsh. Like her mother, Hannah is seen reporting school news at West Beverly High. The character was not seen, heard of or mentioned since the pilot.
Jesse is a mature but high-spirited lawyer who met Andrea Zuckerman at California University. The two soon fell in love, and Andrea became pregnant, leading the pair to marry. Not long after the birth of their daughter, the couple began having problems while Jesse was away on business. Both strayed and confessed this to one another, leading to a strained time in their relationship. As the pair began to contemplate divorce, Dylan McKay suggested that they attempt to stop fighting and try talking, which they eventually did in front of the baby.
After acknowledging that they didn't want their marriage to end, the couple reached the point of reconciliation. Jesse and Andrea soon took their daughter and left Beverly Hills after sharing a heartfelt farewell with their friends. When Andrea reappeared in the eighth season for the group's five-year high school reunion, she revealed to everyone that she and Jesse were getting a divorce.