Dustin Sumari is the twin brother of Linda Sumari and the fourth child of Bob Zorgeloos. His mother, Haley Sumari is a fairy, but like his sister, he is a normal Sim.
Not much is known about his childhood. He never really met his father until his mother and father broke up (at his father's wedding with Alice Fitzgerald), when he met his father at the gym. Regarding his traits, he is smart and artistic, but he was bullied at school.
He became interested in gardening. He sold his vegetables to all family members and friends. He joined the science career and moved on fairly quickly, as he is a genius. He fell in love with Annalove Ivy, a widow who was married with a far older man. Ironically, Annalove now married a much younger man.
Dustin and Annalove were very happy together unless the difference of age. When Annalove died of old age, he was very sad, but soon after he found a new soulmate: Faith MacDuff. They had a baby right before they became elders, called Kimberlee. Later on, they adopted another son, called Leander.