You may argue that this book was written by one who was inspired by devils. I reply, no: devils don't help writing a book which says:
Abraham is a true prophet of God, and Moses is a true prophet of God, and Jesus is a true prophet of God, and Noah is a true prophet of God, and Adam is a true prophet of God, and Hud is a true prophet of God, and Idris is a true prophet of God, and Lot is a true prophet of God, and Salih is a true prophet of God, and David is a true prophet of God, etc...and so on for all the 24 prophets mentioned in the Qur'an (not counting Muhammad, peace be upon him and his family which makes them 25).
Yea ! the Quran is good at name dropping, it steals freely from the bible in order to make it sound true.
I think at least some of those characters are fictional especially the Arab myth of Salih, with his magic camel.
Here is an index of bible characters in the Quran which shows just how much of the Quran is stolen from the bible.
Aaron, 4:163, 6:84, 7:122, 7:142, 7:150, 7:172, 10:75, 19:53, 20:30, 20:40, 20:90, 20:92, 21:48, 23:45, 25:35, 26:12, 26:48, 28:34, 37:114-120
Abraham, 2:124-129, 2:130-132, 2:135, 2:136, 2:140, 2:258, 2:260, 3:65, 3:67-68, 3:84, 3:95, 3:97, 4:54-55, 4:125, 4:163, 6:74-83, 6:161, 9:70, 9:114, 11:69-76, 12:6, 12:38, 14:35, 15:51-56, 16:120, 16:123, 19:41-49, 19:58, 21:51-73, 22:26, 22:43, 22:78, 26:69, 29:16, 29:25, 29:31, 33:7, 37:83-109, 38:45, 42:13, 43:26, 51:24-34, 53:37, 57:26, 60:4-5, 87:19
Adam, 2:31-32, 3:33, 5:27, 7:19-25, 17:61, 17:70, 18:50, 19:58, 20:115-123, 40:31, 41:13, 41:15
Cain and Abel, 5:27-31
David, 4:163, 5:78, 6:84, 17:55, 21:78, 21:79, 27:15-16, 34:10, 34:13, 38:17, 38:21-26, 38:30
Elijah, 6:85, 37:123-130
Isaac, 2:136, 2:140, 3:84, 4:163, 6:84, 11:71, 12:5, 12:6, 12:38, 14:39, 21:72, 37:112-113, 38:45
Ishmael, 2:136, 2:140, 3:84, 4:163, 6:86, 14:39, 21:85, 37:102-109, 38:48
Jacob (Israel), 3:84, 4:163, 6:84, 6:85, 11:71, 12:38, 12:68, 19:6, 19:49-50, 19:58, 21:72
Jesus, 4:163, 9:30, 9:31, 10:68, 19:30-34, 21:91, 23:50, 33:7, 61:6, 61:14
Job, 4:163, 6:84, 21:83, 38:41-44
John the Baptist, 3:38-40, 6:85, 6:86, 19:7-15, 21:90
Jonah, 4:163, 6:86, 10:98, 21:87, 37:139-148, 68:48
Joseph, 6:84, 12:4-101, 12:102, 40:34
Mary, 3:34-37, 3:42-47, 4:156-157, 4:171, 5:17, 5:46, 5:72, 5:78, 5:110, 5:112, 5:114, 5:116, 9:31, 19:16-39, 21:91, 23:50, 33:7, 43:57, 56:27, 61:6, 61:14, 66:12
Moses, 3:84, 6:84, 6:91, 7:103-162, 10:75-93, 11:96, 11:110, 14:5, 14:6, 14:8, 17:2, 17:101-104, 18:60-82, 19:51-53, 20:9-98, 21:48, 22:44, 23:45-49, 25:35, 26:10-66, 27:7-14, 28:3-43, 28:44, 28:48, 28:76, 29:39, 32:23, 33:7, 33:69, 37:114-120, 40:23-27, 40:53, 41:45, 42:13, 43:46-55, 44:17-36, 46:12, 46:30, 51:38-40, 53:36, 61:5, 79:14-25, 87:19
Noah, 3:33, 6:84, 7:59-64, 7:69, 9:70, 10:71, 11:25-33, 11:36-48, 11:89, 14:9, 17:3, 17:17, 19:58, 21:76, 22:42, 23:23-29, 25:37, 26:105-120, 29:14, 37:75-79, 38:12, 40:5, 40:31, 42:13, 50:12, 51:46, 53:52, 54:9, 57:26, 66:10
Pharaoh, 7:104-137, 8:52, 8:54, 10:75-90, 11:97, 14:6, 20:24, 20:43, 20:56, 20:60, 20:78, 23:46, 26:10-66, 27:12, 28:3-42, 29:39, 38:12, 40:24-46, 43:46-85, 44:17, 44:31, 50:13, 51:38-40, 54:41-42, 66:11, 69:9, 73:15-16, 79:17-25, 85:18
Saul, 2:247, 2:249
Solomon, 2:101, 4:163, 6:84, 21:78, 21:79, 21:81, 27:15-21, 34:12-14
Zachariah, 3:37-41, 6:85, 19:2-12