The Lord of the Rings star and Sheffield United fanatic, from Handsworth, planted a tree in the grounds of the Royal Hallamshire Hospital watched by a crowd of admirers, including staff and patients.
Sean was happy to launch the £150,000 Sheffield Leukaemia and Blood Disorders Appeal as he was aware of the specialist care patients get in the city's hospitals because his dad Brian has been receiving treatment for lymphoma - a form of cancer that affects the immune system - and is doing well. They are both full of praise for the care he's received at the city's other adult hospital, the Northern General.
Sheffield Hospitals Charitable Trust aims to raise £150,000 to fully equip new leukaemia wards and day rooms to make them more homely for patients staying within the hospital.
Sean was also due to receive an honorary doctorate at Sheffield University today. Sean Bean back in Sheffield.