Shantry played for Shropshire as a youngster, joining Northamptonshire in 2003 and then moving to Warwickshire two years later.
In 2007 he played two first-class matches for Warwickshire taking four wickets but he was released at the end of the season.
Born in Bristol, Shantry's father, Brian also played county cricket, for Gloucestershire.
Shantry is a devoted Bristol City fan and follows them around the country in the cricket off-season.
In September 2013, Shantry was part of a group who swam the English Channel in memory of former teammate Tom Maynard, who died in 2012.