Rocky and Bullwinkle Wiki




Mr. Peabody and Sherman (friends)




Ariel Winter



Penny Peterson is the daughter of Paul and Patty and the tritagonist in the film Mr. Peabody and Sherman. She's voiced by Ariel Winter. She is Sherman's nemesis turned best friend and crush. Penny tends to not accept responsibility for her actions when it's clear that it is her own fault. At the end of the film, however, when Ms. Grunion almost succeeds in separating Mr. Peabody from Sherman by having the dog catcher force him into a shelter van, she finally admits that everything that happened was her fault and apologizes to Sherman.


Despite her cuteness and tomboyishness, Penny is very rich and spoiled. She appeared to have been envious of Sherman's smarts and called him a dog and bullied him which resulted into a fight. She may also have a wicked sense of humor and spiteful as she would go far to get back at those she dislikes, as she bullied Sherman and in Egypt, when King Tut threatens to kill Mr. Peabody and Sherman, she says "You'd do that for me?", indicating she may have wanted that to happen out of spite for Sherman showing her up in class. However, later they form a very strong friendship during their adventure.

She also is very rebellious, as she tends to stray from Sherman and Mr. Peabody during the time traveling adventures, as shown when she wanted to stay in Ancient Egypt to rule with King Tut and keep his riches once he died, and when she took Da Vinci's flying machine for a test run with Sherman as an unwilling accomplice.

She is also manipulative and greedy, as shown when she wanted to marry Tut knowing he would die young in order to inherit his throne and riches (though eventually backed out once she realized when he died she would be killed and die with him) and when she tricked Sherman into showing her how Da Vinci's machine worked.

Despite all of this, she is also shown to be willing to face up to her mistakes, as she proclaimed in front of everyone that it was her fault for provoking Sherman to bite her and that neither he or Peabody did anything wrong and attempts to take full responsibility for her actions in order for Mr. Peabody and Sherman to remain together (though this is not enough to convince the cold hearted Ms. Grunion to release Mr. Peabody) and apologizes for everything she has done. This proves not only can she understand her own mistakes, but is also loyal and caring to those she is close to.

Physical Appearance

Penny is a cute, perky and tomboyish 8-year old little girl with long blonde hair, blue eyes, and freckles. She wears a black headband. She also wears a light pink wrist-length shirt under a pink sleeveless dress with dark pink stripes and a black belt around it, white tube socks, and a pair of very shiny black Mary Jane shoes. She seems to wear lip gloss and black eyeliner.


  • During an interview at the movie's premiere night, Ariel Winter said that Penny had "liked" Sherman since she first met him, but didn't realize it at the time.
  • Like most of these tomboys, Penny was so good at sports, skateboarding and playing video games.
  • Penny is interested in jazz and swing music, rather she's tap-dancing and playing a trumpet.
  • Penny's minor mentions in The Mr. Peabody & Sherman Show implies that even though she has made no appearances whatsoever, she still exists within the show's universe.
    • It is also implied that the show runners were aware of Penny's absence and are possibly teasing the fans who ask for her, as evidenced with a man holding a "Where's Penny?" sign during the episode, "Seen It / Edgar Allan Poe."