|Relatives|| Frank Tennyson (husband)|
Gwen Tennyson (daughter)
Ken Tennyson (son)
Max Tennyson (father-in-law)
Ben Tennyson (nephew)
Carl Tennyson (brother-in-law)
Sandra Tennyson (sister-in-law)
|Alias|| Aunt Natalie (Ben)|
|Alternate Counterparts||Natalie Tennyson (Ben 10,000 Timeline)|
|Voice Actor||Juliet Landau|
|First Appearance||What Are Little Girls Made Of?|
Natalie doesn't seem to be particularly too fond of Frank's side of the family, as she complains about them by saying they're not as "formal" as her side of the family. She was also seen to have disagreements with Verdona, making stares at each other at every given opportunity. She disapproves Ben yelling his aliens' names in her house.
In What Are Little Girls Made Of?, Verdona wanted to take Gwen to Anodyne with her but needed her parents confirmation. Natalie said she at least wanted Gwen to take on her side of the family while exchanging dirty looks with Verdona, but would let her go to Anodyne. While Verdona said that she would be coming back now and then to visit the family, Natalie gives a sarcastic response saying, "Oh joy."
In It's Not Easy Being Gwen, Natalie asked Gwen to write the rest of the invitations for a family reunion, and invited Ben and Kevin over for dinner.
Ben 10: Alien Force
- What Are Little Girls Made Of? (first appearance)
Ben 10: Ultimate Alien
- According to Dwayne, Natalie disapproves Gwen and Kevin dating, saying she thinks Gwen can do better.