Tommy is a toddler with blonde hair like his mother and brown eyes like his father. He is always doing cute stuff with Cosmo.
Tommy is not too talkative, but always very sweet. It is likely that he will attend a prestigious preschool, Centre For Discovery. He is behind in his language skills, but it has been said that he can improve with the help of a speech therapist.
- D.J. Tanner-Fuller: mother
- Tommy Fuller, Sr.: father (deceased)
- Jackson Fuller: brother
- Max Fuller: brother
- Danny Tanner: grandfather
- Pamela Tanner: grandmother (deceased)
- Teri Tanner: step grandmother
- Stephanie Tanner: aunt
- Michelle Tanner: aunt
- Claire Tanner: great-grandmother
- Wendy Tanner: great-aunt
- Jesse Katsopolis: great-uncle
- Rebecca Katsopolis: great-aunt
- Nicky Katsopolis: first cousin, once removed
- Alex Katsopolis: first cousin, once removed
- Nick Katsopolis: great-grandfather
- Irene Katsopolis: great-grandmother
His first word was "Steph".
Tommy is behind in his language skills, as stated in "A Tommy Tale".