Barbas's History
Meeting the Charmed Ones:
On Friday the 13th in 1999, Barbas returned to earth after thirteen hundred years. In order to be freed from the cycle, he needed to kill thirteen unmarried witches before midnight. His first victim was Tanjella, whom he killed with her fear of being buried alive in an earthquake. He then confronted Zoe, who believed she had conquered her fear of fire, though Barbas replied she had only repressed it before killing her.
Barbas then targeted the Charmed Ones and nearly drowned Prue in the shower, though she was saved when Andy Trudeau and Darryl Morris interrupted him. He proceeded to lure Phoebe to an empty house by pretending to be a client. He then used her phone to lure Prue there as well so he could use both their fears; drowning and losing a sister. When Prue arrived, Barbas pushed her into the pool and she nearly drowned until the spirit of Patty helped her conquer her fear. Due to Prue no longer being afraid, Barbas was banished.
Ms. Hellfire:
The following year, Barbas returned and worked with a criminal named Bane Jessup, who in turn, hired an assassin known as Ms. Hellfire to kill thirteen witches. After the sisters killed the assassin in self-defense, they checked her apartment. When D.J. arrived, he mistook Prue for Hellfire and took her to see Bane.
When Bane took Prue to meet Barbas, he used her fear of someone killing her sisters to hypnotize her. He convinced her that her sisters had been replaced by imposters. Piper and Phoebe were able to snap Prue out of her trance and confronted Barbas. After a short battle, it became midnight and Barbas ran out of time, sending him to purgatory once more.
Manipulating Cole:
While trapped in Purgatory, Barbas met another demon named Stimple, who taught him how to astral project. Barbas then began manipulating Cole Turner and the Charmed Ones as part of his plan to escape. After creating enough conflict, Barbas tricked Paige into giving Cole a power stripping potion. When Cole drank it, Barbas materialized and absorbed the powers.
Barbas freed Stimple and they took over Cole's penthouse. Initially Barbas was only interested in getting revenge on the sisters, though Stimple convinced him to take over the Underworld. While meeting with the demonic leaders, Phoebe appeared before him and taunted him. Barbas followed her to the manor and overpowered the sisters. He then trapped them in the manor and brought all their fears to life.
Stimple pleaded to Barbas to forget the witches, though Barbas vanquished him instead. When he confronted the sisters, Paige managed to orb another power stripping potion at him. The stolen powers were then returned to Cole, who vanquished Barbas with an energy ball.
The Tribunal:
When Inspector Sheridan filmed the sisters using magic to extract a Phantasm, the Cleaners intervened and framed Darryl Morris for murder to cover it up. The sisters sought a way to save their friend and went to the Tribunal with Gideon. When the sisters got a trial, Barbas appeared as the opposing counsel. When Phoebe asked what he was doing there, the Tribunal replied that they liked his "pitch".
Phoebe reasoned that his presence was a conflict of interest, though the Tribunal disagreed. The sisters then began to suspect it was a setup and sent Leo and Chris to investigate. After reviewing several past events, Barbas made his case about the sisters having caused exposure too often and that they should be stripped of their magic.
Just as the Tribunal was about to reach their verdict, Leo and Chris arrived with Inspector Sheridan, revealing she was possessed by a Phantasm and that everything had been set in motion by Barbas. However, Barbas reasoned that the sisters, in particular Phoebe, were still irresponsible with their powers. This resulted in the Tribunal stripping Phoebe's active powers. Due to technically winning his case, Barbas was granted his deal and was resurrected. He then read Gideon's fear, which was that the Charmed Ones would discover he was the one after Wyatt.
Working with Gideon:
When Gideon sent Leo and Chris to a Parallel World, they met a good version of Barbas, who revealed that Gideon was the one after Wyatt. With his secret exposed, Gideon fled to the Underworld and proposed an alliance to Barbas. He revealed that his interference had switched the balance between Good and Evil, and that a great evil was needed to restore it.
Gideon sent Barbas to distract the sisters. When Barbas learned that only Piper was affected by the shift in moralities, he manipulated her into casting a spell on her sisters. Gideon then sent Barbas after Leo, whom he confronted with his worst fear, Wyatt growing up to become evil and failing as a father. During this time, Gideon kidnapped Wyatt and fatally wounded Chris.
While in the Underworld, Barbas grew impatient and tried to kill Wyatt, causing him to orb away. As Barbas chased the boy through the Underworld by tracking his fear, Leo glamoured into Barbas and confronted Gideon. He then vanquished him, performing an act of evil and restoring the balance between moralities, while Barbas fled.
Being Hunted by Leo:
Due to Gideon's betrayal, Leo became obsessed and started hunting down Barbas. However, Barbas manipulated him into attacking an Elder named Zola by comparing him to Gideon. As Barbas got healing from a demonic healer, he was visited by a floating head that told him to go after the baby.
Barbas and a small army of demons attacked Piper and the baby, though she was able to defeat them due to being transformed into the goddess Shakti. Blinded by rage, Leo went after him again and Barbas led him to Zola. This time, Barbas was able to manipulate Leo into killing the Elder.
Barbas returned to his lair and wanted to go after the sisters next, though Paige and Phoebe confronted him instead. Barbas read their fear thinking it would paralyze them, though the sisters replied that their desire to protect their nephews was stronger and vanquished him with a potion.
Momentary Return:
Five years after his vanquish, Barbas's essence observed the Charmed Ones while waiting for the opportunity to return. While Paige was training three kids to defend themselves, Barbas possessed one of them: Tyler Michaels, who was under the influence of Heremus which allowed vanquished evils to return through him. Barbas conjured up giant spiders to kill her charges, but Paige managed to send him through a portal conjured up by Tyler's power and he disappeared into it. Tyler returned moments later.
