A faded actor famous for a superhero franchise, attempting to regain artistic credibility by writing, directing, and starring in a Broadway adaptation. Tormented by the internal voice of his past superhero persona, he endures disastrous previews, a viral underwear incident, and a public brawl before concluding his performance with a self-inflicted stage gunshot.
Lesley is a fellow cast member who suggests casting Mike and supports the production.
Sylvia is Riggan's ex-wife, to whom he confesses his past psychological struggles and infidelity.
Tabitha is a powerful critic who openly despises Riggan and threatens to destroy his play.
Mike and Riggan are in constant creative and personal conflict, escalating to a physical fight.
Jake serves as Riggan's lawyer and the official producer managing the play's logistics.
Laura is Riggan's romantic partner and co-stars in his Broadway production.
Riggan is Sam's biological father and attempts to rebuild their strained relationship through her role as his assistant.