Piper: "Uh, excuse me. When you said, uh, sea hag, did you mean like old woman hag or evil magic hag? Because see, I'm not really in the battle mood today."
Mylie: "Uh, she's kinda both."
Mylie describing the Sea Hag[src]

The Sea Hag was an evil witch who lived in a cavern under the sea. Her specialty was granting mermaids legs in return for their immortality. This allowed her to live on for ages and ages without aging or bartering with powerful demons.

According to the Book of Shadows, the Sea Hag has power of her natural environment. She can create rainstorms, hurricanes, and even tidal waves.


Turning Mermaids Mortal

Mermaids spend eternity alone in the sea, but when they get lonely, their heart warms and they desire the love of a mortal man. The Sea Hag's specialty is granting these lonely mermaids mortality, which rids them of their tail and gives them legs.

The Sea Hag then sends these mermaids onto land where they can go on their search for love. The Hag gives them one month and one month only, in which the mermaid has to find love. If they do not succeed, the mermaids have to give up their immortality to the Sea Hag, which she then exchanges for unknown goods or services with powerful demons or she keeps it for herself.

The Sea Hag collects the immortality by the use of an Auger Shell, a magical shell with the power to collect powers and store them until they are magically extracted. The mermaids have to place the shell above their heart in order for the shell to collect their immortality.

When a mermaid does find a man who loves her, she has to make sure that man confesses his love, or else the deal will not be complete and the mermaid will have to give up her immortality.[2]

Making a Deal with Necron

Necron: "Six months ago, I came to this cavern to feed on you. You talked me out of it. What was it you said?"
Sea Hag: "I promised you an immortal being to give you permanent and everlasting life."
— A threatening Necron comes for his immortality.[src]

In late May 2002, a skeletal being by the name of Necron had come to the Sea Hag for her immortality. Fearing for her life, the Sea Hag made a deal with Necron, promising him the immortality from a mermaid.

Six months later in September, Necron came back to the hag, only to find that she hadn't collected the immortality from a mermaid yet. Necron gave the Hag one more chance and would return the day later.

Granting Mylie Mortality

The Sea Hag about to hand over the Auger Shell to Mylie

Sea Hag: "It's too bad, Mylie, but your time is up. You had thirty days to find love or the penalty would be death."
Mylie: "But he does love me, I know he does."
Sea Hag: "Oh, really? Did he tell you?"
Mylie: "He doesn't have to tell me he loves me."
Sea Hag: "Well, actually, he does. But he'll never say he loves you until he trusts you. And he'll never trust you until you tell him what you really are. You see why I always win these bargains."
— The Sea Hag to Mylie before she escapes.[src]

Mylie with the Auger Shell, giving away her immortality

The Sea Hag had to find a mermaid to steal her immortality and grant it to Necron. She quickly found Mylie, a blonde mermaid whose heart had grown warm and longed for love.

A month had passes, and Mylie had found her love, a man named Craig. However, he had not yet confessed his love to Mylie yet. Mylie had run out of time and had to give her immortality to the Hag, but Mylie managed to escape and find the help of the Charmed Ones.

The Sea Hag quickly cast a spell to track Mylie, and found her at the Halliwell Manor with the Charmed Ones.[3] The Sea Hag attacked the sisters and managed to take Mylie back to her lair.

Desperate and with no positive sight on love, Mylie took the Auger Shell and placed it on her heart, giving her immortality to the Sea Hag.


The Sea Hag turns in a pile of dust after her immortality is sucked out of her

The Sea Hag died shortly after Mylie began to give the hag her immortality. Paige had orbed the Auger Shell from Mylie's chest, but because Paige was trapped in the seaweed, it fell out of her hands into the water.

Phoebe swam to the bottom to grab it. She swam back up, lifting herself temporarily out of the water to throw the shell onto the Sea Hag. Upon making contact with the shell, the Sea Hag turned to dust.

A day later, Necron came to get his immortality from the hag. Much to his displeasing, he only found a pile of dust which once was the Sea Hag. Enraged, Necron went out to find a mermaid himself and collect his immortality.


Book of Shadows

The entry on the Sea Hag (in a fanmade replica of the Book of Shadows).

Piper had found an entry on the Sea Hag in the Book of Shadows. It told her that she had power of her natural environment, but did not mention specifically what that meant. Although Paige had not read the entry on the Sea Hag, the description that Mylie had given her along with what Piper had told her after reading the entry, reminded Paige of the Water Demon and the fascinating way it kills her victims with.[4]

Sea Hag

The Sea Hag is a malevolent magical being
known for tempting Mermaids to give up
their immortality for the love of a human.
She then collects their immortal essence for
barter with powerful demons. She possesses
a vast array of powerful magic, drawn from
the brine of the Sea.


Spell to Find a Mermaid

When the Sea Hag could not sense where Mylie was on land and thus in her mortal form, she had cast this spell to find her. The spell created a big thunderstorm above San Francisco, and made it rain heavily for a long period of time.

Water rise up from the sea,
Find the one who fled from me,
Follow where the winds are cold,
Then fall tenfold like days of old.

To Track the Sea Hag

Unable to find the Sea Hag through scrying[5], the Charmed Ones created a spell in the hope to find her. The spell worked but not as imagined; Phoebe was transformed into a mermaid.

Powers of the witches rise,
Find the hag who speaks in lies
Balance chakra, focus chi,
Lead us through the cruel, cruel sea.

Powers and Abilities

Basic Powers
  • Spell Casting: The ability to cast spells and perform rituals.
  • Potion Brewing: The ability to brew potions.
  • Scrying: The ability to scry for a person or object by the use of a scrying crystal and a map.
  • Mediumship: The ability to see and commune with spirits of the dead.

The Sea Hag creating a ball of water

The Sea Hag traps Leo in a column of water.

Active Powers
  • Hydrokinesis: The ability to create and manipulate water.
  • Atmokinesis: The ability to control and manipulate the weather. The Sea Hag was able to cause a rainstorm to appear over the city with a spell.
  • Water Teleportation: A rare water-based type of teleportation.
  • Liquification: The ability to turn into liquid water temporarily.
  • Sensing: The ability to locate and find persons or objects. The Sea Hag primarily uses this ability to track the mermaids to whom she offered immortality. She could only track them when they were in mermaid form, however.
  • Conjuration: The ability to draw objects into existence. The Sea Hag conjured a net of seaweed to bind Paige in her cave.
Other Powers
  • Immortality: The ability to possess a possibly infinite lifespan and an arrested aging process.
  • High Resistance: The ability to be highly resistant to physical and magical harm.

Notes and Trivia

The Sea Hag entry can be partially seen next to the Water Demon entry

  • The Sea Hag was a known trickster. Especially when it came to granting mermaids their mortality, for the man had to confess his love to the mermaid before the deal was complete. Knowing men, the Sea Hag had put a time limit of one month, knowing that most men would never confess their deepest feeling and thus their love in the timespan of one month.
  • The entry on the Sea Hag was partially seen next to the Water Demon entry in "Hulkus Pocus".
  • The Sea Hag wore what seem to be fish nets, as part of her costume. Her clothing was very rough at the side and had dirty, watery colors. She also wore a shell necklace, with a bigger shell attached to it.
  • The Sea Hag is shown to be the same as Ursula from The Little Mermaid. Like Ursula she wore a shell necklace and both make deals with mermaids for love, although they try their hardest to make sure that their deals do not hold up.


The Sea Hag appeared in a total of 1 episode over the course of the series.


  1. Through a spell.
  2. This is how the Sea Hag tricks many mermaids and thus almost always wins.
  3. Although she briefly found her in the parking lot of "The Bay Mirror" with Phoebe first.
  4. On the moment Paige told this, Piper had a hard moment, explaining that their mother was killed by the Water Demon.
  5. The Sea Hag had enchanted her lair with spells and charms so that it could not be seen by the human eye.