Writing questions and answers

Hello,

So I am writing a chapter in which the three heros are interviewing / interrogating four people they have caught. The goal is not only an info-dump about the four capitives. I am also aiming to show some aspects of the heros. The issue is there is a lot of speech, which you would expect in an interview situation. It looks like a huge long unbroken lump of text. There is very little action (mostly sitting opposite each other talking) to describe.

I havn't yet posted it online unfortunatly.

How much can I write where it is litteraly all speach? How can I do more to break it up and keep the scene logical and realistic? At what point have I just to much speach?


--
A Preston Rover,
Living Afloat, on a dirty old boat.