When you have to play a character that seems to be a relatively decent person and seems to be like yourself, I think the trick in that kind of character, so that you don't become a cliche, is to find where their weaknesses are.
“The future is going to be boring. The suburbanisation of the planet will continue, and the suburbanisation of the soul will follow soon after.”
“A good husband is never the first to go to sleep at night or the last to awake in the morning.”