Rex Sloan, also known as Rex Splode, was a major character in Invincible, serving from Season 1 to 3.

He was a superhero with the ability to generate explosive energy. He was a former member of Teen Team before it disbanded. He was also a member of the newly formed Guardians of the Globe. Following the revelation of Cecil's actions, he and several other members of the Guardians of the Globe left to reform the Teen Team.

During the Invincible War, he sacrificed himself, using his powers to turn his entire skeleton into explosive, to defeat one of the invading Invincible variants. To pay tribute to his fallen friend's legacy, Rudy Connors/Robot took on his first name, officially christening himself as "Rex Conn ors"