Diego Márquez is an 8-year-old Latino action-adventure hero with a big heart. His goal is to save and protect the animals and their environment. Athletic and fearless, he is always at the ready no matter what the situation. Diego loves learning new things. He takes a scientific approach to problem-solving and also uses a variety of high-tech gadgets and gizmos to save the day.


Diego is Dora's cousin, though it's never confirmed how they're related. They're presumably first cousins, and considering they share the same last name, the most likely explanation as to how they're cousins is that their dads are brothers. Like Dora, Diego comes from a family of three kids, with the three kids consisting of one son and two daughters. However, while Dora's the oldest kid in her family (her younger brother and sister, Guillermo and Isabella, are fraternal twins), Diego's the youngest kid in his family (he has two older sisters named Daisy and Alicia). While he's a minor character in his cousin's show, Diego's the host of his own show where he's the main character and Dora appears as a minor character in her cousin's show.


Diego has dark-tan skin and brown eyes. He also has brown hair and wears a light blue shirt with a tan vest, darker blue cargo shorts, white socks, gray shoes, and a blue and yellow watch. However, starting in the fourth season of his show Go, Diego, Go!, he wears a short-sleeved red sweatshirt with an orange top underneath, black cargo shorts, white socks, and black and red sneakers. Diego is seen wearing his previous outfit in a few flashbacks in the episode Fiercest Animals. In his debut, he wore a darker blue shirt with the same vest, green cargo shorts, green socks, brown shoes, and a silver watch.


Diego appears in several episodes of Dora the Explorer as well as every episode of Go, Diego, Go!. He had the major role except in "Alicia and Whitetail to the Rescue". His first appearance was in "Meet Diego!".

Diego has appeared on Dora the Explorer in the following episodes:



Major characters
Main Márquez family
Dora | Diego | Alicia | Mami | Papi | Abuela | Guillermo | Isabella
Swiper | Grumpy Old Troll | Bobo Brothers | Alejandro
Object helpers
Backpack | Map | Rescue Pack | Click
Forest friends
Boots | Tico | Benny | Isa | Big Red Chicken | Señor Tucán | Fiesta Trio | Baby Jaguar
City friends
Pablo | Alana | Emma | Kate | Naiya | Sammy | Randy
Community content is available under CC-BY-SA unless otherwise noted.