Ceol

Sojourner Hooper-Agogô (once called Cousin Ceol) was a former member of Faction Paradox.

As a child in London, she wore a "pink velour trackie" and was friends with Maria. Later in her life, she was haunted by visitations from her clingy ex-boyfriend Ryan, a priest with an exploding glass face. Desperate to get rid of him, she joined Faction Paradox by auditioning against several other Little Siblings in a -style challenge overseen by Godfather Starch. Eventually, Ceol beat Little Brother Dominic, became a Cousin, and used her shadow-weapon to kill Ryan. (PROSE: Now or Thereabouts)

She escaped Faction Paradox by faking her death, reconstructing herself on a posthuman colony shortly before it was destroyed in a natural event. She then moved to Pluto, where she married Rex Agogô and led the rebellion against the Company. She became the new president of PROTEC. However, she was blackmailed into joining Christèmas' plan to sabotage the Chance Coteries, where she discovered her rebellion had been puppet-mastered by Scacia De Ren. (PROSE: Weapons Grade Snake Oil)

After death, she and L-Event were resurrected in the City of the Saved, where she became Lady President of one of the factions during the City's Civil War. (PROSE: A Hundred Words from a Civil War)

Behind the scenes

 * "Ceol" is the name of the island from which the name "Kelsey" is derived; taken into conjunction with her last name "Hooper" and her best friend Maria, it's apparent that Sojourner is a thinly-veiled stand-in for short-lived The Sarah Jane Adventures character Kelsey Hooper.