What Happened

What Happened is the third episode of the first season of What/If. It is the third episode of the series overall.

Synopsis
Secrets and lies threaten the ties that bind a shattered Lisa and anguished Sean. Angela and Marcos are torn by desire, and Anne revisits old haunts.

Plot
SPOILERS AHEAD

Main

 * Renée Zellweger as Anne Montgomery
 * Jane Levy as Lisa Donovan
 * Blake Jenner as Sean Donovan
 * Keith Powers as Todd Archer
 * Samantha Marie Ware as Angela Archer
 * Juan Castano as Marcos Ruiz
 * Dave Annable as Dr. Ian Evans
 * Saamer Usmani as Avery Watkins
 * Daniella Pineda as Cassidy Barrett
 * John Clarence Stewart as Lionel Turner
 * Louis Herthum as Foster

Recurring

 * Derek Smith as Kevin
 * Gabriel Mann as Gage Scott
 * Allie MacDonald as Maddie Carter
 * Nana Ghana as Sophie
 * Monique Kim as Miles
 * Julian Sands as Liam Strom
 * Marissa Cuevas as Christine
 * Keegan Allen as Billy