Ryan Tubridy has been at The Late Late Show helm for almost a decade but this was one of his most talked about interviews yet.
Peter Casey was on the show last Friday and he feels he was targeted by Tubridy in a "set-up" interview.
Casey called the host "unprofessional, patronising and insulting and told Classic Hits' Niall Boylan that it was an "absolute disgrace."
"The biggest challenge was trying to get my wife under control, she was so annoyed. She thought it was an absolute disgrace. She was fit to be tied.
"We [Casey and Tubridy] said we were going to spend maybe three to four minutes, but absolutely cut it off at four, on the traveller situation. I said that's fine and I want to make clear my position so people understand that I'm absolutely not a racist."
When pushed for an apology by Tubridy, Casey refused and stood by his comment that he made about the travelling community.
"You don't create inclusion by marginalising a community"
"I was surprised and taken aback. It shocked me to be quite honest. I really felt that he was supposed to be impartial and professional.
"I've no problem getting attacked by the audience. I'd people before telling me I should pull out because this had been a set-up."
"[Was it a set-up?] without a shadow of a doubt".
"The way he was so unprofessional in how he behaved and very patronising throughout. He was insulting.
"It was such a big contrast to the reasonable, friendly person in the green room."