By NEELA DEBNATH
PUBLISHED: 12:55, Thu, Jun 18, 2015 | UPDATED: 14:34, Thu, Jun 18, 2015
Tom, who is the husband of the late Lady Sybil, was headed to America with their daughter when we last saw him in the Downton Christmas special but it seems that he is back for one last hurrah.
Irish actor Allen, 34, was spotted on filming on set in scenes featuring what appears to be a motor race, suggesting Tom could have a hand in helping out with the cars thanks to his mechanical skills.
Filming took place at the Brooklands Museum Near Weybridge, Surrey which was the former site of the Brooklands racing circuit and aerodrome.
There were plenty of extras dressed in 1920s costumes, suggesting that the series will still be set in the same era rather than doing any jumps forward in time as it has previously between series.
Actors Matthew Goode, who plays Henry Talbot, and Tom Cullen, who stars as Lord Gillingham, were also spotted filming scenes, hinting that the pair could be racing in a bid to win Lady Mary's (Michelle Dockery) affections.
Only last week the "downstairs" cast reunited to film scenes in Oxfordshire that saw the characters playing cricket together on their say off from looking after the Abbey.
It was announced that the series will be receiving a special Bafta honour later this year for its outstanding global success and flying the flag for British drama around the globe.
READ MORE HERE: http://www.express.co.uk/entertainment/tv-radio/585340/Downton-Abbey-season-6-Tom-Branson-Allen-Leech-Lady-Mary