MacKenzie "Big Mac" Chalker

MacKenzie Chalker, better known to his friends and colleagues as Big Mac is a porter at Holby City Emergency Dempartment. He is loyal to his friends and co-workers.

History
Big Mac was born to a shy, and deaf, mother and a father who left him when he was 5 years old. As a result, Big Mac's mother smothered him, giving him what he wanted and this made him lazy.

Big Mac eventually joined the army and became a cook. However, the fear of being shot took over and he deserted. He went back home to his mother who eventually caught cancer and Mac spent a lot of time in hospitals due to this. This also made Mac become a hypochondriac as if his mother had taken her symptoms seriously, she may still be alive.

Holby City ED
Mac started working as a porter in Holby City ED. On his first day, he was revealed to be a computer whiz, and he traced the creator of the Toxic Shark blog that was describing events happening in the ED.

Mac struck up a close friendship with receptionist Noel Garcia and nurse Kelsey Phillips.