The phrase "a very interesting guy" is correct and usable in written English.
You can use it to describe someone who captivates attention or has engaging qualities.
Example: "At the party, I met a very interesting guy who shared fascinating stories about his travels."
Alternatives: "a truly captivating person" or "an exceptionally intriguing individual".
He was a very interesting guy.
One of Scorsese's best friends from childhood (now dead), "a very interesting guy, as close as I could get to an intellectual in my neighborhood, he read books, he saw plays".
"When I first met him," says Tom LeClair, academic and DeLillo's friend for 20 years, "I thought, this is a very interesting guy, he has a kind of eccentric mind, but not a massive brain like Thomas Pynchon, for example.
He founded the company and the case is about his attempt to sell the company, which he did, so he's selling a company that — which is posthumously his, and he actually sold it for fifty seven million bucks, and it's a no venture medley story and he's a very interesting guy.
"Sandy Weill is a very interesting guy," said Adrian Zackheim, publisher of Portfolio Books at the Penguin Putnam division of Pearson, "but right now there is some question in everyone's mind about whether this is the time for heroic business stories".
From what I've heard he seems to be a very interesting guy.
RS: Well, and what's interesting about your book is there's denial even, you know, Peter Matthiessen - I mean, Matthiessen's a very good author, very interesting guy and everything.
Duke Special He's a very interesting-looking guy.
We recently had a very interesting case where a guy carried out five serious sexual assaults in Poplar, East London.
I thought that was a very interesting choice where you guys decided to add that level of complexity.
He's taken under the wing of both Ragnar and King Ecbert, and Ecbert of Wessex [Linus Roache] is also a very interesting and intellectual and sophisticated guy.
