Who is a soothsayer character in the Bible?

Answer 1

The general theme in relation to "soothsayers" is that God instructs his people not to seek soothsayers and this is mentioned several times throughtout The Bible. Here is an example; Leviticus 20:6

"And the soul that turneth unto necromancers And unto soothsayers, to go a whoring after them, I will set my face against that soul, And will cut him off from among his people"

Answer 2

Balaam was a soothsayer, as the Bible says:

Balaam also the son of Beor, the soothsayer, did the children of Israel slay with the sword among them that were slain by them. (Joshua 13.22)

You can see his story in Numbers 22