Isabela Yolanda Moner (born July 10, 2001), known professionally by her screen name Isabela Merced since 2019, is an American actress. She played the lead role in the Nickelodeon television series 100 Things to Do Before High School (2014–2016), and went on to feature in the films Transformers: The Last Knight (2017), Instant Family (2018), and Sicario: Day of the Soldado(2018). She starred as the Dora the Explorer in the adventure film Dora and the Lost City of Gold (2019) and played main roles in the romantic drama film Turtles All the Way Down(2024) and the horror film Alien: Romulus (2024). She also played Agent Olive in the Pilot episode of Odd Squad, though the part was given to Dalila Bela for the remainder of the season.