Roberta Sanderman (born June 23, 2006) is a sister of Jason and Tony Sanderman and daughter of Emma and Joey Sanderman.
She has blonde hair, blue eyes, and pale skin. She wears a green flannel shirt.
- Her full name is Roberta Elaine Sanderman
- Her favorite movie is Disney/Pixar's Monsters, Inc.
- She is allergic to peanuts
- Her favorite TV program is
- She likes to watch The Simpsons with Jason
- For Halloween 2010, she was dressed up as Dorothy Gale from The Wizard of Oz
- For Halloween 2018, she was dressed up as a flamenco dancer
- Father: Joey Sanderman (1978-)
- Mother: Emma Sanderman (1966-) (née: Foster)
- Brothers: Jason Sanderman (2003-), Tony Sanderman (2008-)
- Sisters: Carrie Sanderman (2017-), Sienna Sanderman (2017-), Reggie Sanderman (2017-), Delia Sanderman (2017-)
- Aunts: Janelle Foster, Summer Foster, Alyssa Foster, Tracy Foster, Mara Foster, Jada Sanderman, America Sanderman, Ivy Sanderman
- Uncles: Maverick Foster, Cedric Foster, Spencer Foster, Broderick Foster, Coleman Foster, Dawson Sanderman, Gunner Sanderman
- Cousins: Eric Foster, Byron Sanderman, Norman Foster, Myra Foster, Noelle Sanderman, Tim Foster
- Grandmothers: Valerie Sanderman, Edina Foster
- Grandfathers: Norbert Sanderman, Jerome Foster