Hazel Charming – A young Charmer and Enchantress-in-training who's magic is known for its tendency not to work out well, to the point that her magical mishaps are known as being Hazeled. Sometimes Hazel uses her wand in the Charmhouse. Her musical instrumentin Rainbow Sparkle is a guitar.
Lavender – A bow-loving and purple-haired Charmer who uses her wand for making potions to help the others. She has won awards for fashion design. Her catchphrase is "Charmazing!" Her musical instrument in Rainbow Sparkle is a set of drums.
Posie – A lighthearted Charmer who uses her wand to play it as the flute. She has two brothers, her big brother is Parsley and her baby brother is Thistle. Easily excitable and very gentle, Posie is optimistic and peaceful by default. She sees the beauty in everything and can be very sweet with a motherly flair and ability to trust her instincts. She can be easily distracted however, and is very chatty to the point of accidentally being blunt with others or a little rude. Posie does her best to keep everyone encouraged and uplifted. Her musical instrument in Rainbow Sparkle is a keyboard.
Mr. Charming - Hazel's bespectacled wizard father and the owner of a broom store.
Mrs. Charming – Hazel's mother and the most powerful Charmer. In her role as Enchantress, she uses her magic to deal with problems around Charmville.
Seven is Hazel's cat.
Flare is Lavender's dragon.
Treble is Posie's owl.
Parsley – Posie's older brother. Although not seen using his powers as often, he is also capable of casting charms and cause mischief. He works at Mr. Charming's broom shop as an assistant and has a slight rivalry with Hazel.
*Thistle is the baby brother of Posie and Parsley.
Recurring
Prince Ferg – a frog prince of the pond. Was originally a normal prince but was turned into a frog, though he reveals that both his father and grandfather had been frog princes as well.
Gary the Gnome shows up in several episodes.
Mrs. Greensparkle the schoolteacher shows up in several episodes.
Olive shows up in several episodes.
Willow shows up in several episodes.
a green mother dragon returns in 'Dragon Daycare' after being shown in an earlier episode.
Nelson the Gnome appear in "Nelson in Charge" to babysit the Charmers.
Picklemunchinfeet is a lonely ogre the charmers befriend.
Princess Corina is a mermaid that Hazel befriends.
Splish is the childhood nickname of Corina's mother when she was friends with Chanty.
Fourteen different toys based on the series were made. Spin Master made toys including dolls, figurines, plushies and RPGs. Additionally, bedding was made by Baby Boom Consumer Products, cake decorations by Bakery Crafts Halloween costumes by Rubie's Costume Company, and other products by Scholastic. Four games for the series, Charmers in Training, Hazel Eyes, Junior Brooms, and Sparkle Up! were made as well.