Book III of Ovid

Cadmus-He was told to find Europa by her father. A poisonous serpent come down on the men of Tyre and kills them all, Cadmus sees them and avenges their deaths by killing the serpent with a javelin. He founded Thebes on the serpent's teeth.
Actaeon-Actaeon came upon Diana and her nymphs when he came into the glade they were bathing in. She turned him into a stag after throwing water at him. His dogs saw him and ripped him apart. This makes Juno happy because he is Europa's kin.
Semele-After having an affair with Jove and now pregnant with his child, Juno asks her to ask Jove to show her his true form, he does it unwillingly and she blows up. He takes her unborn babe and sews it into his thigh, the baby later becomes Tiresias.
Tiresias-Turned into a blind seer when he tells Juno that women have greater physical pleasure than men after he spent several years as a man and a woman.
Narcissus and Echo-Echo can only repeat the last word spoken from someone after getting caught by Juno when she was protecting other nymphs who were having an affair with Jove. She sees beautiful Narcissus and falls in love, but he does not want her, he sees himself and wants his image. He dies on the bank of the river in which he sees himself and turns into a Narcissus flower.
Pentheus-Came across a women's ceremony and they ripped him to shreds-including his own mother.
                                                          
 Cadmus and the Dragon's Teeth

 Actaeon and Diana

Semele and Jove

 Tiresias

Narcissus and Echo

 Pentheus