(Annabelle Kriby Tennyson (Anna)
Anna remide her grandpa about his work

Anna was focus with the man who talk to Max

General Information
Species 3/4 Human
1/4 Anodite
Home World Earth
Residence Bellwood
Age 5 ½ (Omniverse flashbacks)
10 (Original Series)
11 (Omniverse flashbacks)
15 (Alien Force and Omniverse Flashbacks)
16 (Ultimate Alien and Omniverse))
Affiliations Madison Elementary School (formerly)
Friedkin University (formerly)
Ben's Team
Occupations Student
Athlete Girl
Powers and Abilities
Abilities Memory
Fast Understanding
Learning and Understanding
Equipment Omnitrix
Ascalon (formerly)
Ultimatrix (formerly)
Omnitrix (Original) (destroyed)
Tenn-Speed (formerly)
Time Cycle (formerly))
Relatives Carl Tennyson (father)
Sandra Tennyson (mother)
Ben Tennyson (brother)
Frank Tennyson (uncle)
Natalie Tennyson (aunt)
Manny Tennyson (uncle)
Max Tennyson (grandfather)
Verdona (grandmother)
Gordon Tennyson (grand-uncle)
Betty Jean Tennyson (grand-aunt)
Vera Tennyson (grand-aunt)
Ben (great-great-grandfather)
Jedediah Tennyson (great-grand-uncle)
Gwen Tennyson (cousin)
Ken Tennyson (cousin)
Sunny (cousin)
14 Necrofriggians (niece and nephew as Big Chill)
Joel Tennyson (cousin once removed)
Clyde Fife (second cousin) Lucy Mann (cousin-in-law)
Aliases Anna 10
Anna Prime
Doctor A-Tennyson
Anny (Ben)
Cous (Gwen)
The 4th (Max)
Bellie (Sandra)
Belle (Carl)
Beast Girl (Kevin)
Watch Girl/Anna-b/Friend (Helen)
Bestie (Enid Wilson)
Voice Actor Kate Micucci 5,10,11
Hynden Walch 15,16,17,18
First Appearance Twin sister Anna

Anna is a hero in Ben 10 Season 5. She first appeared in Twin Sister Anna. She is a Human from the planet Earth.


Anna's physical appearance has changed throughout the series from a ten-year-old to a sixteen-year-old. However she has brown hair, green eyes, pale skin with her magical flower called "Jasmine".

Regular Appearances

In the Omniverse flashbacks in which she was 5 years old, Anna wore Pink overalls with a white shirt underneath it. White numbers saying "5 1/2" with the sofia handwriting in front of her overalls.

In the original series and Omniverse flashbacks, Anna's usual clothes consisted of pink dress with a heart in the middle of the dress and crystal pants socks, and glass shoes. Anna wore the prototype Omnitrix on on her left wrist.

In Alien Force and Ultimate Alien, Anna wore a plump dress, crystal socks and a pink jacket she sometimes tied it around her middle of her body with white stripes and the number 10 on it, and pink sketchers. Anna wore the prototype Omnitrix in Alien Force and the Ultimatrix in Ultimate Alien on her left wrist

In Omniverse, Anna wears a pink dress white 10 and pink stripes on the sides of her dress. she cristal socks and wearing dark pink shoes she later gains a white hooded jacket with pink stripes on both arms and a pink number 10 on the right side for some time. she wears the Omnitrix on her left wrist.


She is kind, brave, pretty and a genius, more than Ben and Gwen, but she is very shy and doesn't trust people except Ben. Very helpful girl and friendly.


When Anna was 6, she was playing hide and seek with Ben and Gwen. Suddenly, she was kidnapped. Ben told the police but he didn't know where she was. After 3 months without her, when Ben was on a way in the desert road, he saw her beaten by her kidnappers. Ben checked if she was okay. Ben is very protective of her.

Powers and Abilities

Anna found the Omnitrix at the same time when Ben found the other but in a different place when she was with Verdona and Ken. She can transform into 10 different aliens


Her main weakness is if she fails in exams or anything else she got off and stay at the hospital for several weeks and when Ben shouted at her cruelly and whenever the Omnitrix times out, Anna is left powerless until he either dodges or switches to a new alien form. In addition to gaining the selected alien's powers and strengths, she gains its weaknesses. Additionally, at times the natural biological behavior of certain aliens can override Anna's behavior, such as Big Chill's reproductive phase or Swampfire's blossoming process. Furthermore, any illness Anna is experiencing in his human form will also affect his alien forms.

Whenever Anna unlocks a new alien form, she is at advantage of knowing its abilities and weaknesses until she gains experience with using the new alien.

Despite her experience in using the Omnitrix and Ultimatrix, Anna knows every function of them. Due to her quisitive nature and impatience, she has accidentally unlocked new functions such as the Master Control and the randomizer, which can at times do more harm than good.

Though the current Omnitrix is designed to work only for him, Anna still has not mastered it. According to zinnth, Anna may get the Master Control on her 18th birthday.

The Omnitrix does not actually mistransform, but rather it is due to Anna hitting the Omnitrix too hard, thereby causing the time-out function to select another alien at random.

Anna has an allergy to peanuts and has has coulrophobia, the fear of clowns. Anna's worst fear is that of peacocks, cockroach and spiders

Anna's doesn't tell lie when she tell a lie her face became red , but only Helen appears to notice this.

Anna doesn't get into trouble if she got into trouble she ran away.

Though she has matured substantially since receiving the original Omnitrix, she is still a teenager with much to learn and is prone to irrational impulses and recklessness.


  • Ben Tennyson
  • Tom Green
  • Gwen Tennyson
  • Kai Green
  • Kevin Levin
  • Helen Levin
  • Max Tennyson
  • Verdona Tennyson
  • Ken Tennyson
  • Carl Tennyson
  • Sandra Tennyson


  • Ben Tennyson
  • Gwen Tennyson
  • Lucy Mann Tennyson
  • Max Tennyson
  • Verdona Tennyson
  • Sunny Tennyson
  • Ken Tennyson
  • Carl Tennyson
  • Sandra Tennyson
  • Natalie Tennyson
  • Frank Tennyson
  • Manny Tennyson
  • Betty jean Tennyson
  • Gordon Tennyson
  • Vera Tennyson
  • Joel Tennyson
  • Camilie Tennyson


  • Enid Wilson
  • Helen Levin (formerly)

Love Interests

  • Tom Green
  • Jake Yamamoto


She always says "Benny". It means "my life" or "my brother". She loves Ben so much and stands beside him all the time.


  • Twin Sister Anna
  • Who is the Smartest?
  • Etc.



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