The 30-year-old's association with Mitchell first made headlines in 2012 when King invited the former Bandido leader into the Richmond rooms at the MCG after a win over the Brisbane Lions.
Since then he has continued to socialise with Mitchell, with the pair photographed on several occasions despite the club's preference they cut ties with each other.
The media attention has been a constant source of frustration for the 30-year-old who made headlines again a week ago when he appeared in a photo with Mitchell.
King said the Tigers had no problems with the relationship, as long as he continued to adhere to certain guidelines they had put in place.
"The club's got no issues whatsoever," he told Triple M on Saturday.
"The reality is you grow up in all areas of life and not everyone is perfect. To be honest we've all got friends who are unique in their own sort of way.
"If we were all the same type of people the world would be a boring place. The thing is, you're made out to be a bad person or you've done something wrong but that's just one person's opinion.
"[Mitchell] is a good bloke and I've grown up with him."
The injured forward declared he wanted to play in 2015, despite fears he would be unable to get back on the field this season.
King has been plagued by injury with a quadriceps strain and a chronic toe injury limiting him to just two senior games this year.
He is out of contract at the end of the season, and is yet to discuss his future with the club.
The Tiger conceded his chances of having his contract renewed would depend on whether he could return to the senior side.
"To be honest I'd love to play one more year of footy next year," King told Triple M on Saturday.
"In a perfect world I'd love to play next year and play a dozen or so games if I can and help out the younger guys on our list.
"I want to walk away from the game with my head held high. If I can get another 12 months out of my body, I'd be rapt.
"The reality is if I can't get back out on the big stage this year, then what's the point of playing on next year? That's just taking up someone else's spot on the list and holding them back."
King had a fourth surgical procedure on his toe last week, but remains confident he will be able to return to senior footy this year.
The 30-year-old said he expected to return to football via the VFL after the split round 18 and had the full support of coach Damian Hardwick.
"He said as soon as we get a bit of fitness and running into the legs at training then you'll hit the ground running and we'll give you a red hot crack," King said.
