Everyone here has a write-up, drawn from the same records that explain the names while you read the text.
John
ApostleA fisherman called with his brother James, part of the inner three, and traditionally the author of the fourth Gospel, three letters, and Revelation. The Gospel calls him the disciple Jesus loved and places him at the cross, entrusted with Jesus' mother.
Mark 1:19-20John 19:26-27Acts 3:1-11
Balaam
Seer for hireA diviner from the Euphrates hired to curse Israel, who could only say what God gave him to say, including one of the clearest messianic lines in the Torah. The Bible's later verdict on him is harsh: Numbers, Peter, Jude, and Revelation all treat him as the pattern of a religious professional who sells his gift.
Numbers 22-24Numbers 31:16Deuteronomy 23:4-5
Gog
The enemy from the far northThe figure in Ezekiel 38 and 39 who leads a coalition from the remote north against a restored and unwalled Israel, and is destroyed there. Ezekiel calls him the chief prince of Meshech and Tubal, of the land of Magog.
Ezekiel 38:1-23Ezekiel 39:1-16Revelation 20:7-9
Satan
The accuserThe Hebrew word satan means adversary or accuser, and in its earliest uses it is a role rather than a name, complete with the definite article: the accuser, standing in the heavenly court to press a case, as in Job and Zechariah.
Job 1:6-12Zechariah 3:1-2Matthew 4:1-11
Michael
The named angelsThe only two angels Scripture names. Gabriel appears as a messenger, interpreting Daniel's visions and announcing the births of John and of Jesus. Michael is called a prince and an archangel, and is described contending for Israel.
Daniel 8:16Daniel 10:13-21Luke 1:19-26