Keira Knightley's stalker made cat noises through her letterbox.

The 'Begin Again' actress was bombarded with messages from Mark Revill, who also wrote in chalk outside her London home and sent her a USB stick with feline-themed music on it, as well as a picture of the animals winking.

The 49 year old was eventually chased away by Keira's husband James Righton, but the actress was left feeling ''uncomfortable'' after seeing him outside her house multiple times over a three-month period.

According to MailOnline, prosecutor Simms Khan said in Highbury Magistrates Court: ''The first point of contact was a chalk drawing on the pavement, an arrow pointing directly at her front door.

''He then persistently delivered hand written letters, there was no stamp of frank on it so there was no way it could have gone through the Royal Mail or any other delivery system.

''He then goes to her address, lifts up the letter box and makes meowing sounds - Ms Knightley's husband then chases Mr Revill to confront him about the allegations.

''It makes the victim uncomfortable, she sees him outside, goes away and continues her day, comes back and he's still outside.

''Now she's feeling quite apprehensive but there is no direct contact.''

Revill previously insisted he loved Keira, but had been approaching her to promote his music.

His lawyer, Vharat Gupta, said: ''He himself is a music composer and when he was arrested he was playing his guitar, the reason he went to the address as to promote his music.

''She's a famous star and maybe there was an attraction there as well. Clearly there's a mental health issue.''

The man was charged with stalking the actress - who has an 18-month-old daughter, Edie, with her spouse - between August 1 and October 22 and is currently in custody for breaching one of the technical terms of his bail.