Siobhan (pronounced Shee-Vaughn) McDougal wanted to take her birthright -which her father denied her cause of her being a woman- as the firstborn of the clan, and started a ritual that would grant her great powers but was distracted by her brother Bevan, so that mystic forces banished her to a netherworld where a Crone found her and took pity and made her the Silver Banshee.
The Banshee was commanded to retrieve a magical book sold by her uncle before she could revenge herself on her brother and uncle. Superman encountered her in Metropolis searching for the book, and needed the Martian Manhunter's help to avoid being killed by her wail.
A second time the Banshee appeared in Metropolis, leaving when Bevan appeared. After Batman found and gave the missing book to Superman, the Banshee - and her brother and uncle - was apparently destroyed by the Crone, when the Crone decided the family still suffered from pride.
But Superman would encounter the Banshee again, when Blaze tried using the Banshee to kill Superman. Later the Banshee was used by another demon (actually the ancestor of SB) who was plotting to replace Blaze.

First Appearance: Action Comics #595 (Dec. 1987) Further Appearances: Action Comics #662 JLA: The Nail #2 Supergirl (1996) vol. 2 #10, 11, 12, 47 Superman (1986) vol. 4 #17, 23, 96 Superman: Man of Steel #131 "Ending Battle 7/8" [Storyline continues in MOS 130 (3/8), ACTION COMICS 795 (4/8) #796 (8/8)] Superman: Man of Tomorrow #15 Superman: Silver Banshee #1, 2 (written by Dan Brereton and drawn by Joyce Chin) It is the night of Halloween and Lois Lane has a 'killer' of a lead...which ends up dead. Silver Banshee wants to get rid of her curse and the Crone sends her from the Netherworld to Earth and meet the last surviver of her bloodline, who is the only one to lift the Banshee's curse willingly. But she must make sure that no harm will come to this relative. When travelling through the mists Banshee gets trapped by a witch who also trapped Lois mere minutes before. Soon after Superman comes to the rescue, demons fight and SB merges with the last of her bloodline and while saving eachothers backs the two end up staying merged... Superman Villains Secret Files #1 Action Comics #820 When Superman is present at the funeral of a photographer, who died because he got caught in the crossfire of battling superheroes, the Silver Banshee crashes the 'party' from the Netherworld... Elseworld Appearances: Wonder Woman #175 (Earth-806 Silver Banshee) Elseworlds 80-Page Giant #1 Legends of The World's Finest 1, 2, 3 (Superman/Batman by Dan Brereton) The one that lead the curse on Banshee is somehow revived and cooks up a cunning plan (together with Silver Banshee) in which the personalities of Bruce Wayne (Batman) and Clark Kent (Superman) are magically being swapped bit by bit. The goal is to create a warrior so great he can best the demon queen Blaze who wants SB's ancestor returned to her pits. SB works along because she is promised absolution from her curse and the darkened Superman...In the end all the good in the world wins...but barely!!!

Ending Battle (8 Parts)

• Superman #186 (November)
  Geoff Johns, Pascual Ferry, Cam Smith
  Vice President Pete Ross catches up with his old school friend, Clark Kent before entering an emergency meeting with the Senate... a meeting that is interrupted by an attack from the Master Jailer and Neutron... an attack meant only as a warning to Superman.

• The Adventures of Superman #608 (November)
  Joe Casey, Derec Aucoin, Derec Aucoin
  The Atomic Skull attacks Kon-El (Superboy), Jonathan and Martha Kent at their home. Clark's old football caoch is attacked by Riot. His dentist threatened by the Quakemaster. Jimmy is set upon by King Shark. Everyone associated with Clark Kent is in danger... next it's Lois!

• Superman - The Man of Steel #130 (November)
  Mark Schultz, Brandon Badeaux, Mark Morales
  Superman saves Lois and the Daily Planet staff from the Evil Star, and gets Lois to call all his family and friends to get them to the safety of the Steelworks. Once there, Superman and Lois convince everyone that for Clark's sake Superman needs them all to stay safe while he deals with the situation.

• Superman in Action Comics #795 (November)
  Joe Kelly, Duncan Rouleau, Marlo Alquiza
  Superman confronts Lex Luthor about his knowing that Superman is Clark Kent, but Lex isn't the one behind the attacks on Clark's family and friends... The Elite come to attack Luthor, revealing that Manchester Black is the mastermind behind the mayhem.

• Superman #187 (December)
  Geoff Johns, Pascual Ferry, Mark Farmer
  On his way to confront Manchester Black, Superman is confronted by the Toyman, Bizarro, Neutron, Terra-Man, Puzzler and Master Jailer. Even Mr Mxyzptlk pops in for a visit. But it's Metallo with his Kryptonite heart that captures Superman's full attention.

• The Adventures of Superman #609 (December)
  Joe Casey, Derec Aucoin, Derec Aucoin
  Superman gets rid of Metallo and Master Jailer only to be confronted by a horde of new villains wanting to trash Superman and Metropolis. Superman makes quick work of them (while Senator Kale gripes nearby). Lois decides to take some action... but finds Manchester Black at her apartment door!

• Superman - The Man of Steel #131 (December)
  Mark Schultz, Brandon Badeaux, Mark Morales
  Confronted by a smart Bizarro, Mongul, Silver Banshee and Master Jailer, Superman must think his way through to finally reach Manchester Black... who (having tormented her emotionally) has Lois at this feet all bloodied and broken when Superman arrives.

• Superman in Action Comics #796 (December)
  Joe Kelly, Duncan Rouleau, Marlo Alquiza
  Manchester Black makes Superman think Lois is dead hoping he'll break him and make him kill him... but Superman doesn't kill, and Manchester Black, knowing he's failed, allows the real Lois to reunite with her husband before going off and killing himself.

• Notable Issue: Supergirl #75 (December)
  Peter David, Ed Benes, Alex Lei
  Back to full power, Supergirl is pleased to be back to normal and back home with her parents... until a spaceship crashes in the middle of Leesburg and a new Supergirl, Kara Zor-El, emerges claiming to be Superman's Kryptonian cousin...