Anh Nhu Nguyen pretended his wife and 12-year-old son were killed in the blaze so he could claim charity handouts.
He pocketed £11,270 as he was put up in hotels and given clothing, laptops and cash.
But police discovered the 53-year-old had 28 convictions for 56 offences spanning more than 30 years, including theft, dishonesty offences, arson and grievous bodily harm.
Nguyen, who was born in Vietnam, even tried to apply for a passport by claiming his had been incinerated. He was jailed for 21 months in February.Elaine Douglas and Tommy Brooks falsely claimed they lived in Grenfell Tower to claim more than £120,000.
The illegal immigrants spent eight months living in a four-star hotel, with taxpayers footing the £400-a-night bill.
They also spent more than £20,000 on meals and clothing on pre-paid credit cards which were given to them by Kensington and Chelsea council.
The pair entered Britain illegally from Jamaica 16 years ago on separate flights and were ordered to leave by immigration officials only to vanish – reappearing in the aftermath of the Grenfell tragedy last year.
Joyce Msokeri falsely claimed to have lost her husband in the blaze so that she could claim thousands of pounds.
The conwoman travelled 14 miles from her own flat to the tower block and convinced charity workers she had survived the inferno.
She feigned trauma to obtain handouts of £19,000 in cash, food, clothing, three mobile phones and free stays at a Hilton hotel. The 47-year-old would have received £203,000 in handouts if she had not been caught.
When Msokeri, from Zimbabwe, kept giving them different numbers for her flat in the tower block, her apparent forgetfulness was put down to trauma. She was jailed for four-and-a-half years in April.
Mohammad Gamoota trawled a list of the dead then told officials his father was Abdeslam Sebbar, who had died after becoming trapped in his flat.Police arrest nine 'Grenfell fraudsters' suspected of falsely claiming up to £100,000 each in series of dawn raids
By Richard Spillett, Crime Correspondent For MailOnline
Police have arrested nine alleged fraudsters suspected of having falsely claimed they were Grenfell survivors so they could get handouts.
A series of dawn raids were carried out around the capital by detectives investigating claims fraudsters exploited the disaster to claim tens of thousands of pounds meant for real victims.
Eight men and a woman are in custody over the alleged frauds, which range from £25,000 to £100,000 in value, Scotland Yard said.
Police have made a series of arrests over allegations of fraud by people claiming to be victims or survivors of the Grenfell Tower fire
Police believe two of the individuals are linked but said all the offences are separate.
Some of those arrested were living in hotels when they were detained, the Met Police revealed.
Detective Superintendent Matt Bonner, Senior Investigating Officer, said: 'It is completely unacceptable that people would seek to profit from such a human tragedy, and try and attach themselves to a community that they are not part of.
'Over the last 12 months I have met all the families whose loved ones died; many of the survivors and members of the local community from Grenfell.'
In response to the announcement, Shahin Sadafi, chair of Grenfell United said: 'It is hurtful and saddening that people would take advantage of a tragedy like this.
'It is not just that they have taken funds and charity that was not for them, it is disrespectful to the real victims of the fire and people who lost their lives.
Elaine Douglas and Tommy Brooks were found to have lived in a hotel at taxpayers' expense
Mohammad Ali Gamoota and Joyce Msokeri have already been jailed for Grenfell scams
'Our community has shown strength, determination and dignity throughout the last year. Grenfell Tower was a community of good decent people, and we were proud to be each others' neighbours.
'These people have absolutely no place here. We are relieved they have been identified and rooted out.'
A series of fraudsters have already been brought before the courts for defrauding charities and authorities out of money in the wake of the fire, which claimed 82 lives.
Earlier this month, Mohammad Gamoota, 31, was jailed for 18 months for pretending to be a Grenfell Tower victim's son to get £5,000 and free hotel stays.
Jamaican nationals Elaine Douglas, 51, and Tommy Brooks, 52, are awaiting sentence for spending eight months living in a four-star hotel at the taxpayers' expense at a cost of £400-a-night.
They also spent more than £20,000 on meals and clothing on pre-paid credit cards which were given to them by the local council.
Another fraudster, Anh Nhu Nguyen, met Prince Charles during his time posing as a victim
In April, Joyce Msokeri, 47, was jailed for four-and-a-half years at the Old Bailey for fraud after posing as a Grenfell survivor in a £19,000 scam.
She claimed around £19,000 in cash donations, electronics, handbags, dresses and hotel costs - and filled a room at Hilton hotel with donations from charities.
Two months prior, in February, serial conman Anh Nhu Nguyen, 53, was jailed for 21 months after pretending his family died in the Grenfell fire.
He claimed his wife and son were killed in the atrocity to obtain about £12,500 from funds intended for victims - and even met Prince Charles as he posed as a survivor.
Grenfell's ground zero: But what did start the horror?
By David Wilkes for The Daily Mail
Released for the first time yesterday, these images reveal the charred and mangled remains of the inside of the flat where the Grenfell Tower inferno began.
Walls and ceilings are blackened and kitchen appliances sit scorched and warped out of shape inside fire-ravaged flat 16 on the fourth floor.
What was left of the fridge freezer – which it was previously suggested by police was to blame – is visible, along with the washing machine, microwave and other items, including one identified in an official report as 'possible kettle' and another as 'possible toaster'.
Sliding doors which separated the kitchen from the living room, which was reduced to the same ghostly appearance, are gone.
Niamh Nic Daeid, Professor of Forensic Science at the Leverhulme Research Centre at the University of Dundee, made two visits to Grenfell, during which she was provided with access to flat 16.
In a report released yesterday, she told how firefighters also captured images of the inside of flat 16 on the night of the fire with a thermal imaging camera
The bedroom: The fire tore through the house in Grenfell tower
The living room: Furniture destroyed by the flames lies in tatters
The kitchen: Worktops lie in tatters after the flames engulfed the flat
Firefighter Daniel Brown, who broke down the door of the two-bedroom flat, said that 'black smoke billowed out'.
Professor Daeid said it was possible to say that the origin of the fire was in the southeast corner of the kitchen and that 'it is more likely than not that this was in or around the area of the tall fridge freezer'.
But she said there was insufficient information to pinpoint the cause of the fire.