|Home World||Earth (Race Against Time Timeline)|
|Relatives|| Ben Tennyson (son)|
Gwen Tennyson (niece)
Max Tennyson (father in-law)
Carl Tennyson (husband)
|First Appearance||Ben 10: Race Against Time|
Sandra Tennyson is yet another alternate version of Sandra.
Her personality is similar to her husband's. However, she seems to be less free going than Carl when she warns Ben about having too much cheese.
- She's one of three Sandras to appear.
- Like Carl, her look in this movie would eventually be used for her main timeline counterpart.