@Alsohuman But Farage, who has failed 7 times to become an MP and is "only" an MEP, has made 33 appearances now on BBC's Question Time.
Oh, that's a production company too.
I'm trying to locate full info as at now for other notables, but the only comparison table I can find at the moment is from March 2015. At that point, the most frequent QT guest was Caroline Flint with 13 appearances. Ken Clarke tied with Diane Abbott and Farage next at 11. Yet Clarke has been an MP for decades and held the second most senior Government post at one time, so hardly commensurate. Vince Cable had 10 appearances.
So, Farage has more than doubled his appearances in the last 4 years. I'm betting that is not the case with Clarke or Cable. who are both still MPs (Farage never, remember). Cable is a party leader, which Farage wasn't for some of the last four years.