|Known relatives:||Mrs. Bolt (wife)|
|Behind the scenes|
|First Appearance:||The Castafiore Emerald|
|Last Appearance:||The Castafiore Emerald|
Mr. Arthur Bolt (French: Isidore Boullu) is a local handyman from Marlinspike village.
He appears in The Castafiore Emerald where he eventually repairs a broken step at Marlinspike Hall. He is also one of the many who wrote to congratulate Captain Haddock when the news of his 'engagement' with Bianca Castafiore was published in the Paris-Flash.