Everyone here has a write-up, drawn from the same records that explain the names while you read the text.
Joseph
Patriarch, ruler in EgyptJacob's favored son, sold into slavery by his brothers, imprisoned on a false accusation, and raised to second in Egypt because he could read dreams. When his brothers finally stood before him he said the line the whole story turns on: you meant it for evil, God meant it for good.
Genesis 37-50Exodus 1:5-8Deuteronomy 33:13-17
Moses
Prophet and lawgiverRaised in Pharaoh's household, exiled for forty years as a shepherd, then sent back to demand Israel's release. He led the nation out of Egypt, received the law at Sinai, and led them forty years through the wilderness, but died on Mount Nebo within sight of the land he never entered.
Exodus 2-40NumbersDeuteronomy 34
Aaron
First high priestMoses' older brother and spokesman, and the head of Israel's priesthood. He also made the golden calf while his brother was on the mountain, which the text reports without softening.
Exodus 4:14-16Exodus 32Leviticus 8
Miriam
ProphetessMoses' sister, who watched the basket in the reeds and later led the women in song after the sea. She is called a prophetess, and she was also struck with leprosy for a week after challenging Moses' authority.
Exodus 2:4-8Exodus 15:20-21Numbers 12
Joshua
Successor to MosesMoses' assistant and one of the two spies who came back from Canaan saying it could be taken. He led the crossing of the Jordan and the conquest, and at the end of his life made the whole nation choose openly whom they would serve.
Exodus 17:8-16Exodus 33:11Numbers 13-14
Pharaoh
King of Egypt in the exodusThe king who would not let Israel go. Exodus never names him, which is itself a choice: the most powerful man in the world is a title rather than a person, while the Hebrew midwives who defy him are named. His hardening heart is described both as his own doing and as God's, and the two statements sit side by side without resolution.
Exodus 1-14
Shiphrah and Puah
The Hebrew midwivesOrdered by the most powerful man in the world to kill every Hebrew boy at birth, they refused, and told the king a story about how quickly Hebrew women delivered. Exodus names them and does not name the Pharaoh, which is the narrator making a point about who matters.
Exodus 1:15-21
Amram
Parents of MosesA Levite couple whose three children were Miriam, Aaron, and Moses. Jochebed hid her son for three months and then built him a waterproofed basket, the same Hebrew word used for Noah's ark.
Exodus 2:1-10Exodus 6:20Hebrews 11:23
Hur
Who held up Moses' handsWith Aaron, he held up Moses' arms through the battle with Amalek when Moses grew too tired to keep them raised, one on each side, until sunset. Left with Aaron to handle disputes while Moses was on the mountain.
Exodus 17:10-13Exodus 24:14
Nadab
Aaron's eldest sonsAaron's two eldest sons, ordained as priests and among the seventy who went up the mountain and saw the God of Israel. Days after the tabernacle was consecrated they offered unauthorized fire before the LORD, and fire came out and consumed them.
Exodus 6:23Exodus 24:1-11Leviticus 10:1-7
Eleazar
Aaron's surviving sonsAaron's third and fourth sons, who inherited the priesthood after the older two, Nadab and Abihu, were killed offering unauthorized fire. Eleazar succeeded Aaron as high priest and stood with Joshua to divide the land.
Exodus 6:23-25Leviticus 10:1-7Numbers 20:25-28
Libni
The Levite clan headsThe sons and grandsons of Levi's three houses, named in the genealogies that open Exodus 6 and Numbers 3 and fill the Chronicler's registers. Libni and Shimei from Gershon; Amram, Izhar, Hebron, and Uzziel from Kohath; Mahli and Mushi from Merari.
Exodus 6:14-25Numbers 3:17-351 Chronicles 6:1-30