A Million Little Things - Season 4 Apr 2026

: The mysterious events of the Season 3 cliffhanger involving Gary and Peter are unraveled early in the season, revealing the repercussions of Gary’s attempt at vigilante justice. Main Cast List

The series continues with its primary ensemble cast, with Stephanie Szostak (Delilah) moving to a recurring role after the premiere. Role Summary Gary Mendez Navigates a cancer recurrence and fatherhood Allison Miller Maggie Bloom Achieves radio success and prepares for a baby David Giuntoli Eddie Saville Rebuilds his life and career after his accident Grace Park Katherine Kim Explores her sexuality and a new life with Greta Romany Malco Rome Howard Focuses on documentary filmmaking and teaching Christina Moses Regina Howard Builds her food truck business and navigates family shifts Lizzy Greene Sophie Dixon Continues her healing process after her assault Tristan Byon Theo Saville Navigates his parents' divorce and new relationships How to Watch Season 4 | A Million Little Things Wiki A Million Little Things - Season 4

: After individual growth and separate relationships (like Maggie’s with Camden), the two eventually reunite. The season ends with the bittersweet news that Maggie is pregnant but Gary’s lung cancer has returned , which he initially keeps secret. : The mysterious events of the Season 3

: Post-divorce, Katherine explores her identity beyond labels and traditional expectations. She begins a significant relationship with Greta Strobe , her high school best friend. The season ends with the bittersweet news that