This Is Us Season 4 Apr 2026

premiered on September 24, 2019, and concluded on March 24, 2020, consisting of 18 episodes. Creator Dan Fogelman and the writers continued expanding the show's massive timeline, focusing heavily on expanding the Pearson family history while introducing brand new, life-altering characters. 🔑 Key Plotlines

Tensions between the brothers reach an absolute breaking point over the course of the season, largely due to a fierce disagreement regarding Rebecca's medical care and clinical trials. This Is Us Season 4

Matriarch Rebecca Pearson begins to experience noticeable memory lapses. She is eventually diagnosed with mild cognitive impairment, heavily implied to be the early onset of Alzheimer's disease. premiered on September 24, 2019, and concluded on

The couple must adjust to raising their baby, Jack, who was born blind. The emotional strain and Toby's coping mechanisms create deep friction in their marriage. 🎭 Cast & New Additions The emotional strain and Toby's coping mechanisms create

The season premiere famously introduced three entirely new characters without immediate context. These included Cassidy, a military veteran struggling with PTSD; Malik, a teenage father in Philadelphia who falls for Deja; and a blind adult musician in the future who is revealed to be Kate and Toby's grown-up son, Jack Damon.

Milo Ventimiglia (Jack), Mandy Moore (Rebecca), Sterling K. Brown (Randall), Chrissy Metz (Kate), and Justin Hartley (Kevin) all return as the core Pearson family.

Joining the ensemble in Season 4 were Jennifer Morrison as Cassidy, Asante Blackk as Malik, Blake Stadnik as adult Jack Damon, and Tim Matheson as Rebecca's father, Dave Malone.