Joss Whedon

Joss Whedon is the creator of several popular television series, namely, Buffy the Vampire Slayer, Angel (show), and Firefly. His collective work is refered to as the Jossverse, and his shows all have a large presense in fandom.

Mr. Whedon's penchant for explaining events and themes in the canon via press conference or news articles has seen him become the namesake of the trope, The Joss - essentially, the creator explaining something outside of the immediate continua.