I found no information about the first two men, they are very realistic.
The notice beside the third statue states:-
Sir Simon Milton 1961 – 2011
Sculpture by Bruce Denny. Installed September 2014
Deputy Mayor of London 2008 – 2011
Leader of Westminster City Council 2000 - 2008
As a Councillor representing Lancaster Gate Ward between 1988 and 2008 Sir Simon held the regeneration of Paddington close to his heart and as Leader of the Council he was instrumental in ensuring that the plans for breathing new life into Paddington became reality
In 2008 Sir Simon became the Deputy Mayor of London for Policy and Planning and subsequently the Mayor of London’s Chief of Staff.
The stunning waterspace and thriving residential and commercial neighbourhood of Merchant Square surrounding you today is a testament to Sir Simon’s determination to create a new West End quarter at Paddington