What are the names of the people buried in the cave of Machpe'lah?

Abraham, Sarah are two but there are more

Additional Answer:

Genesis 49:29-31New International Version (NIV)

The Death of Jacob

29 Then he gave them these instructions: "I am about to be gathered to my people. Bury me with my fathers in the cave in the field of Ephron the Hittite, 30 the cave in the field of Machpelah, near Mamre in Canaan, which Abraham bought along with the field as a burial place from Ephron the Hittite. 31There Abraham and his wife Sarah were buried, there Isaac and his wife Rebekah were buried, and there I buried Leah.

Total of 6 people.