Mike was Beth’s unsuspecting husband. He was injured by the burglars in their flat and confined to hospital.

Death: Beth accidentally stabbed him with her organic blade arm when she was hugging him.

Dyfed Potter had only one TV credit before Torchwood

Torchwood

Sleeper (2008) TV episode .... Mike

Before Torchwood

"Casualty" .... Allan Hambley (1 episode, 2007)