Scooter T. Rocketboy was a commercial transport passenger in the 24th century.
In 2328, the SS Kogin ferried him from Tycho IV Spaceport to Vega colony. His special accommodation was a low gravity suite. His passenger manifest was accessed by Lieutenant Commander Data aboard the USS Enterprise-D in 2370 by reviewing this data in the commercial transport database. (TNG: "Inheritance", okudagram)
This character was only mentioned in writing.
Scooter T. Rocketboy was named after a dog owned by Michael and Denise Okuda. At least in the case of the dog, the middle initial stands for "the". [1]