The music mogul has told how he was left shaken and feared for the safety of his baby son Eric after an intruder stole cash and jewellery from his home during the night-time raid.
Cowell, his partner Lauren Silverman and their 21-month-old son were asleep when the burglar broke into their home in Holland Park, west London, on December 4.
Police have released CCTV footage and a still of a man wearing a woolly red hat and dark coat who they want to speak to in connection with the incident.
The man in the footage is described as slim, approximately 5ft 10in tall, and was wearing dark trousers.
Security guard M’Bathonha Mendes has revealed how he wrestled with the burglar after spotting him acting suspiciously near Cowell’s home.
Mendes told the Sunday Mirror he drove after the burglar and managed to snatch back Cowell’s bag containing about £500,000 of jewellery.
A 37-year-old man has already been arrested in connection with the incident and has been bailed to a date in early January pending further inquiries.
Detective Chief Inspector Will Young said: “This is an ongoing investigation involving a number of lines of inquiry and we are actively following all leads in an effort to identify the suspect concerned.
“A man has already been arrested in connection with this incident and is currently on police bail.”
Singer and fellow X Factor judge Rita Ora suffered a terrifying night-time burglary in which robbers made off with thousands of pounds worth of personal items, shortly before Cowell fell victim to a similar raid.