Cassidy Donovan

Chapter 3

Cassidy Donovan / Cass

Pushes to change the duet's key to E major to highlight his baritone, successfully swaying Mary Jane initially. Accepts defeat when the new arrangement sounds clumsy but leaves annoyed at Hannah’s rehearsal schedule, displaying prima donna behavior throughout.

Chapter 8 - HANNAH

Cassidy Donovan / Cass

Demands a choir accompany Hannah's duet and insists on altering the song's arrangement, causing significant friction during rehearsal. He pressures Mary Jane to remain silent during their disputes while maintaining control over the performance details.

Chapter 18 - HANNAH

Cassidy / Cass

Mentioned by friends as having gone on a date with Mary Jane, raising Hannah's concerns about losing creative control at Monday's rehearsal.

Chapter 24 - HANNAH

Cass

Mentioned as the partner for an earlier rehearsal that Hannah has already forgotten due to her preoccupation with tonight's events.

Chapter 26 - HANNAH

Cass / Chazz

Arrives late to rehearsal with Mary Jane and introduces a cellist without consulting Hannah. He endures Garrett's deliberate name mispronunciation and territorial warning before storming off with Mary Jane.

Chapter 33 - HANNAH

Cass Donovan / Cass

Described by Hannah and her friends as having unilaterally decided to perform his duet partner’s song as a solo act, prompting faculty intervention that ultimately benefits Hannah.

Chapter 41 - HANNAH

Cass

Opens the junior showcase with a technically flawless but emotionally detached rendition of a peer's song, defends his decision to claim the solo spot without remorse, and dismisses bitterness backstage before departing.