The actor played serial killer Richard Hillman on the ITV1 soap for nearly two years before the character drowned in 2003.
Capron has now admitted that his memorable Weatherfield storylines put strain on his marriage due to incidents with intrusive fans on the streets. Additionally, his son Louis, now 13, was bullied at school due to the part.
Speaking to the Daily Record, the 62-year-old explained: "I couldn't go anywhere without someone shouting at me or grabbing me. They would ignore my wife. She became a non-person and it's hard to cope with.
"Everywhere you go, people are giving you attention and it was rare that anyone would acknowledge the person standing next to you."
On his own problems, he continued: "I was so ensconced in the role. The pressure of 200 episodes in just less than two years made me nearly explode. At the end I couldn't have done another day.
"It was only later that I realised how difficult it was for my wife and child. I wouldn't say I nearly lost my family but there were all sorts of negative effects. We are happy now but it did go through a tricky stage."
Capron is currently rehearsing for a new touring production of Stepping Out alongside ex-EastEnders star Jessie Wallace.