Defender or midfielder Matt Mitchel-King joins Hemel having featured for the likes of Cambridge City, Histon, Crewe Alexandra, AFC Wimbledon, Dartford and St Neots Town.
He has made 93 Football League appearances to his name.
Sean Shields has joined initially on a month`s loan from league rivals Ebbsfleet United.
Shields has played for a number of local clubs, including St Albans City as well as at Chelmsford City and Margate.
Upon leaving the Saints he joined Sky Bet League Two side Dagenham & Redbridge.
These additions are hot on the heels of the Tudors signing of Adam Morgan from Accrington Stanley, Audrius Laucys from Brentford on a month’s loan and former Tudors` midfielder Ollie Thorne on a dual registration with Kettering Town.