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Penny Gadget
Penny Gadget
AKA Angel (by her Uncle Gadget)
Sophie (in French)
Occupation Detective
Gender Female
Race Human
Status Alive
Family Inspector Gadget (uncle), Brain (dog)
Location Metro City
Riverton, Ohio (in the live-action films)
Portrayed By Mona Marshall (in the pilot)
Cree Summer-Hayes (First season)
Holly Berger (Second season)
Erica Horn (Inspector Gadget Saves Christmas)
Michelle Trachtenberg (1999 film)
Caitlin Wachs (2003 sequel)
Tegan Moss (2001-2005)
Tara Strong (2015)
"I feel like I've stepped in to a time machine, but I can't find anything that links them with M.A.D."
―Penny investigating the phony pirates[src]

Penny Gadget/Brown is the deuteragonist of Inspector Gadget and the tritagonist of Inspector Gadget, Gadget and the Gadgetinis, and Inspector Gadget 2. She is Gadget's niece and Brain's owner. She is also the protagonist of it's 2015 CGI series.

Penny usually helps Gadget with his missions, but it is Gadget who ends up getting all the credit in the end. For some reason, she doesn't seem annoyed by this, probably because if Claw found out, she'd be in mortal danger and Gadget would be appalled that Penny almost put herself in danger. 


Penny likes to help Gadget out with his missions, despite him always getting the credit afterwards. She usually uses her computer book and video watch to help her solve the cases. It is never explained where Penny got them or why she has them in the first place, but given Penny's super intelligence, she probably built it herself. 

In Inspector Gadget 2, Penny wants to be given a chance by her uncle to become a fellow detective and come with him on his missions, but he would never let her as she is too young. She does so, but ends up in danger and its up to Gadget and G2 to save her. However, at the end of the film, she is awarded a medal by Gadget for being a junior detective.


Penny is Lt. Gadget's cute and very beautiful tomboy niece and she secretly solves his cases for him. Penny loves her uncle very much, and looks up to him. It is never explained if she and/or Gadget have any other family members in the TV series, movies, or spin-offs, but Gadget seems to be the only family she has got.

Penny foils Dr. Claw's plans, leaving Gadget to get all of the credit for doing so, even though he didn't do anything at all. Penny often snoops around M.A.D.'s hideout to find out what they are planning; however, she normally ends up getting caught by Claw's henchmen and she either escapes by herself or calls her loyal pet dog Brain to rescue her. But when she and Brain are both captured, Gadget becomes competent and goes out of his way to rescue his angel, Penny.

She is right-handed, very intelligent despite her cuteness and tomboyish beauty and capable of hacking into almost any computer-based system.

Despite being fearless and a genius, Penny does have her foibles. It is revealed several times that she has a strong weakness for boys and gets nervous when they're near her.



Penny's design changes over the years. 10 year old Penny from Inspector Gadget (left), 12 year old Penny from Gadget and the Gadgetinis (center) and 15 year old Penny from Inspector Gadget (2015 TV Series).

Penny has shoulder-length blonde hair worn in 2 ponytails and blue or green eyes. She wears a red short-sleeved T-shirt with a thick white stripe in the middle of her torso with olive green pants with knee patches, followed by red and pink trainers. For swimsuits, Penny wears a tiny red or blue bikini and a red tan-kini.

In the early 2000's, Penny wears a pink midriff shirt, a long sleeve turtleneck, brown baggy pants, and red sneakers. Her ponytails are also straight up. In Biggest Caper, she wore a red and white long sleeve shirt, blue jeans, and black sneakers. 

In the 2015 series, she now wears a red hoodie with white sleeve red boots, blue pants and red fingerless gloves, though occasionally she can be seen in her outfit of the original cartoon.


  • Penny's last name is unknown. While Inspector Gadget's last name is Brown in the live-action film, the animated series strongly implies that Gadget is his real last name. While one can assume Penny's last name is Brown or Gadget, she frequently calls him "Uncle Gadget," suggesting that Gadget may be her maternal uncle or that he had his gadgets before Penny was born or before she met him.
  • Penny was Cree Summer's very first character. 
  • Despite being blonde, it is shown in episode of Gadget and the Gadgetinis that all her relatives have black hair. So, maybe she dyes her hair or her mother is a blonde. However in an episode of the original series, her ancestor's are blonde.
  • Penny's age throughout the animated series is 10 years old. She is 12 years old in Gadget and the Gadgetinis and Inspector Gadget's Last Case , 16 years old in Inspector Gadget's Biggest Caper Ever], and 15 in the sequel series.
  • Her eye color in the animated series is sometimes green and sometimes blue, which can be quite confusing. In Gadget and the Gadgetinis and Last Case, her eyes are purple.


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