Here is a detailed timeline and cast of characters based on the provided sources:

Detailed Timeline

Pre-Event - The "Rift" Saga (Third and Fourth Seasons of Xena: Warrior Princess)

Directly Pre-Event - The Immediate Aftermath

The "Gab-Drag" Scene and Fall

Entry into Illusia (The Minds of Xena and Gabrielle)

Experiences within Illusia

Post-Confrontation and Self-Reflection

Resolution and Return to Reality

Post-Event - Fan Reactions and Production

Cast of Characters