The series, which stars Tamsin Greig, Stephen Mangan and Matt LeBlanc, is scathing about the American television industry.
Speaking to The Daily Telegraph, Klarik's co-writer David Crane admitted that he was nervous about "burning bridges" by writing the show.
However, Klarik explained that he relished the opportunity, saying: "This has given me a lot of revenge. There are a lot of people I've come after. It gives me such joy.
"The funny thing is the outrageousness of the reality. So much of it is stuff we've gone through... I've done pilots where I've said, 'I have a script I wanted to show you' and they've said, 'Great, we can't wait to see it, but could you come up with something about a girl's boarding school?' Of course you know there's been some corporate retreat where some higher-up executive goes, 'I know, boarding school' and all the people below will go, 'Gotcha, boarding school, gotcha'."
Klarik also revealed that some of the characters are based on real people, adding: "Some of them have actually read it and loved it, too. So they don't recognise themselves."
Episodes begins on Sunday at 9.30pm on Showtime in the US and on Monday at 10pm on BBC Two in the UK.