Questions about the Gargoyle Cameo

Certain sources claim the gargoyle resembles Alfred Hitchcock, others describe it looking like Mel Brooks. Some say the gargoyle can be seen shortly after the dart match scene, while others indicate you can see it while Igor is playing his musical instrument on the castle tower (the final shot of the movie).

Can anybody clarify who the gargoyle was modeled after and when can we see "him?"

Thanks in advance!