Who is the main character in Lab rats?

The main character in "Lab Rats" is Leo Dooley, a teenage boy who discovers that his mother has been secretly raising three superhuman siblings—Adam, Bree, and Chase—in their home. Leo serves as the audience's relatable perspective as he navigates the challenges of living with bionic siblings while also trying to fit in at school and deal with typical teenage issues. His character adds humor and heart to the series, making him a pivotal part of the show's dynamics.