Hannity, who is famously right-wing and pro-Israel, asked Yousef Munayyer if he was "thick in the head" as he attempted in vain to get him to agree that Hamas were a terrorist organisation.
"One of the definitions of 'terrorist' is using intimidation to reach your goals," Brand said on his satirical YouTube digest Trews (scroll down to watch the video). "Who in that situation was behaving like a terrorist, using bullying, intimidation? Sean Hannerty. That is where the terrorism is coming from."
He added: "There’s no objective terrorism, there’s just different perspectives of violence. No-one should be using violence, but if you’re going to judge violence pejoratively and negatively, and God knows we all should, then the people that are doing the most and the most effective violence surely are committing the greater crime?"
"Sean's not a solution-based guy," Brand commented elsewhere during his episode. "Sean's not thinking 'we want peace, what we should we do to get peace?' He's thinking 'We want conflict. What can I say to exacerbate conflict?'"
Brand’s critique of Hannity’s segment, named "Sympathy For The Terrorists", wasn’t always so eloquent, however.
He also quipped: "I don't mean to be petty or trivial but Hannity looks like the Ken doll from Toy Story 3."
Of course, this isn't the first time Brand has labelled Fox News "terrorists". In fact, he called the station a "fanatical terrorist propagandist organisation" in a charged rant on Iraq at the end of June.
Video: In February he gave a controversial interview with Jon Snow
The three-week Israeli military offensive in Gaza has so far claimed over 1,100 lives, many of which have been civilian. Israel has lost 43, three of which were civilians.