I recently finished watching the entirety of Lupin the Third Part II, a 155 episode endeavor which secured the Lupin the Third franchise within my heart. When discussing this series, many people draw (too much in my opinion) attention to episode 145 and 155, both of which were directed by Hayao Miyazaki of Studio Ghibli fame.
What might interest you though is that if you look at the credits for those episodes, you will see no mention of Hayao Miyazaki. Instead you will see the name “Teruki Tsutomu” listed as the director. This name later turned out to be a pseudonym that Hayao Miyazaki had used while making these episodes. This is not an isolated event with many people who work on anime and manga choosing to use pseudonyms rather than their real names.