Astronaut Thunderbird 3 Alan Tracy

The youngest of the five Tracy brothers, Alan pilots Thunderbird 3, the rocket that handles International Rescue's missions in space. Impatient and a little restless on Earth, he's happiest strapped into the cockpit, itching for a call that sends him beyond the atmosphere while his brothers handle the missions closer to home.

Alan gets the glamour job — space rescues — but the writing quietly makes him the kid brother still proving himself, and Matt Zimmerman's voice gives him a keen, slightly cocky eagerness that separates him from his steadier siblings. It's a small, specific note of youth inside a show built on cool competence.