Originally portrayed by Todd Carty, who is now 60, Mark first appeared as a child ... began decades earlier when they were both child actors. Get the latest news sent straight to your messages ...

The original character was played by Todd Carty, now aged 60, and made a comeback ... the wider virus and how it can affect people. The actor has also made appearances on shows like Heartbeat ...

Originally portrayed by Todd Carty, who is now 60, Mark first appeared as a child before making ... but their love story began decades earlier when they were both child actors. Recalling their early ...