- The Other Darrin: In the animatic uploaded by Mike Milo, Flavio has a completely different voice. This is because his creator was to voice him. In the end, Rob Paulsen was hired to do his voice.
- What Could Have Been: Mike Milo originally intended to voice Flavio and even recorded for the character, but re-casted the role after the animation came back under the suggestion of himself and Fred Seibert as he felt his performance didn't suit the returned animation and also believed it was a bit stereotypical. Rob Paulsen was chosen from auditions and he ADR-ed his lines for the short, supposedly doing an impression of Milo's 'Flavio' voice.
Trivia / Flavio the Goat