Rowan Atkinson has either a stutter or stammer (The two are used interchangeably but they are different) [0]. I suspect this influenced the physical (and mostly non-verbal) comedy of Mr. Bean as well as his earlier standup.
He also blocks on the letter 'B' which makes him slightly halt when pronouncing words like "Baldrick", "Blackadder", "Bean", "Bob" which he uses to this comedic advantage.[1]
He also blocks on the letter 'B' which makes him slightly halt when pronouncing words like "Baldrick", "Blackadder", "Bean", "Bob" which he uses to this comedic advantage.[1]
[0] https://www.stutteringhelp.org/content/rowan-atkinson [1] https://en.wikipedia.org/wiki/Rowan_Atkinson#Comic_style