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Pre-Game LifeEdit

Like Professor Layton, there is little information on Don Paolo's early life. Some of it is revealed in Unwound Future. Professor Layton's sweetheart, Claire, was also loved by Don Paolo. However, after seeing Claire choose Layton over him, he got into such a rage his hairstyle changed forever. He cried and ran away, running into the river. His hatred towards Layton worsened when Claire died. He swore that one day, he would have his revenge on him.

Professor Layton and the Curious VillageEdit

Layton: "No Inspector, it has quite a bit to do with you." Chelmey: "Meaning?" Layton: "... Isn't it obvious? If there is any criminal element involved in this case...
then it is you, sir!" Chelmey: "What? That's absurd!" Luke: "Hey! Calm down!" Lady Dahlia: "Hmm!?" Chelmey: "What utter rubbish!!! You'll need more then some daft charge to save your hide!"

In Curious Village, his flying machine crash-landed in St. Mystere, and he sets to work. First during his time in the village, he discovers what has happened to Simon, and, shocked until he realizes who Simon truly is, takes him away to examine the ingenius engineering that made him. He uses Simon's 'death' as an excuse to disguise himself as famed Inspector Chelmey, and after a lot of 'investigation', rudeness towards Layton, and a Ferris Wheel incident, he accuses Professor Layton of Simon's murder and attempts to arrest him. Professor Layton realizes that the Inspector is really Don Paolo through a series of mistakes Don made.

With his cover blown, he flees from Reinhold Manor, and doesn't return until the game's ending sequence, where he attempts to kill Layton, Luke and Flora by demolishing the tower from the safety of his flying contraption. His machine, however, is accidentally damaged by Layton's makeshift glider, and he swears revenge for reasons unknown as his machine crash-lands far away from St. Mystere. He's seen again during the ending credits walking away enraged.

Professor Layton and the Diabolical BoxEdit

In Diabolical Box, Don Paolo is the person who steals the Elysian Box from Dr. Schrader. While Layton, Luke and Flora are in the town of Dropstone, Don Paolo seizes the opportunity and captures Flora leaving her in a barn. He then disguises himself as her and joins Layton and Luke on their journey. Much later in the game in Folsense's Hotel, Professor Layton spots something odd in what 'Flora' says, and reveals Don Paolo to be the true thief of the Elysian Box. Inspector Chelmey attempts to apprehend the evil scientist but he manages to escape. He is seen again during the ending credits running away from Inspector Chelmey past Folsense's restaurant.

Professor Layton and the Eternal DivaEdit

Don Paolo appears briefly in the opening scenes of Eternal Diva. Don Paolo appears when Professor Layton accuses an elderly lady of silencing the bell of Clock Tower. It turns out that the elderly woman is in fact Don Paolo in disguise. Don Paolo then jumps off Tower Bridge and flees with the use of an umbrella that converts into a small propeller as Layton and the authorities give chase. Inspector Chelmey and Barton also appear in this scene.

Professor Layton and the Unwound FutureEdit

In Unwound Future, he appears as an ally and not as a villain. When the main characters are captured by Dimitri in the Towering Pagoda, it is discovered that Professor Layton was really Don Paolo. The fake Professor Layton removes his disguise, and the real one walks through the door and sets them free. Don also made disguises for Dr. Schrader and Dean Delmona in Future London.

In a further twist it is discovered that Don had struck a deal with Layton, posing as a decoy in case something went wrong. That way the real Layton would be able to help.

Luke and Flora are surprised to see him helping out for a change but it is revealed that he is after the same goal as Professor Layton, and that his hatred towards him is because he loved Claire, and was heartbroken when he witnessed her tell Layton that she liked him. His hatred for Layton worsened when he learned that Claire died in explosion of the time machine during its first test run at the Institute of Polydimensional Physics. He blames Layton for not protecting her better on that day, thus he swore to seek vengeance upon him ever since. He too questioned her death. {C

After exiting the Towering Pagoda, which turns out not to be "Future Layton's" true

headquarters, Don Paolo explains the true reason for his hatred toward Layton and leaves the group in awe.

He then disappears to work on a "little project", and reappears after leaving a puzzle at the Research Facility. Towards the final showdown with Clive, Don had built his own version of the Laytonmobile, with the ability to fly. He can be seen watching the Laytonmobile through binoculars as it flies away from the wreckage of the Mobile Fortress at the end of the game, shouting "Aha! Well done, Layton!" from a rooftop. What happens to him afterwards is never revealed. {C