This Is Us · A Viewer's Companion
One family, three timelines. Here's who's who — in every decade at once.
This show jumps between the 1980s, the 1990s, the present, and decades into the future — so the same person can be a baby, a teenager, and a grandparent within one episode, played by two or three different actors. This chart holds still for you: amber borders are the Big Three and their kids (born or adopted — in this family that distinction never mattered), denim is Jack & Rebecca's generation, moss green is Randall's first family, and each actor line reads young → adult.
Why the tree matters: five facts carry the whole show
Every timeline jump lands on one of these. Know them, and even a random mid-run episode makes sense.
Three babies, one birthday — but only two births
Rebecca carried triplets. The third was stillborn — and the same day, a newborn abandoned at a fire station was brought to the same hospital. Nudged by Dr. K’s “sourest lemon” speech, Jack and Rebecca took him home. That’s Randall — adopted on the day he was born, every bit the third of the Big Three.
How Jack dies
The show’s first great engine: Jack is alive in every past timeline and mourned in every present one. The answer (S2): a faulty slow cooker burns the house down on Super Bowl Sunday 1998. Jack gets everyone out — then goes back for the dog — and dies afterward at the hospital, of cardiac arrest from the smoke.
Miguel married his best friend’s widow
Yes, that Miguel — Jack’s best man. He and Rebecca reconnected years after Jack died and married; the show let viewers resent him for five seasons before “Miguel” (S6) laid out his whole quiet, loyal life and broke everyone. He cares for Rebecca through her Alzheimer’s until his own death.
Uncle Nicky is alive
Jack told his kids his brother died in Vietnam. Season 3 reveals the truth: after Nicky’s breakdown caused a Vietnamese boy’s death, Jack cut him off and spoke of him as dead. The Big Three find Nicky — a bitter recluse in a trailer — and his late-life thaw (he even marries, in his 70s) is one of the show’s gentlest arcs.
William, Laurel, and the door Randall opens
In the pilot, adult Randall tracks down his birth father: William, a poet and recovering addict with terminal cancer. Their road trip, “Memphis,” is the series’ most loved hour. Randall grows up believing his birth mother died the night he was born — Season 5 reveals Laurel survived that night and lived until 2015, never knowing what became of her son.
Three timelines, one cast
Episodes braid the parents’ era (’80s–’90s), the present, and flash-forwards to Rebecca’s old age. Adults age via makeup — Ventimiglia and Moore play every decade — but each of the Big Three needed three actors: child, teen, adult. The card lists on the tree read young → adult, so you always know who’s who on screen.
The name decoder
Same names, different people, different decades. Keep these straight:
Jack vs. Jack
Jack Pearson = the dad (Milo Ventimiglia). Jack Damon = Kate’s son, named for him — born blind, grows into a stadium-filling singer in the flash-forwards.
Nicky vs. Nick
Both legally “Nicholas Pearson.” Nicky = Jack’s Vietnam-vet brother. Nick = Kevin’s twin son, named in his honor. If he’s in a trailer, it’s the uncle.
Who’s playing the Big Three right now?
Child era: Parker Bates / Mackenzie Hancsicsak / Lonnie Chavis. Teen era: Logan Shroyer / Hannah Zeile / Niles Fitch. Adult: Justin Hartley / Chrissy Metz / Sterling K. Brown (Kevin / Kate / Randall).
Deja vs. Tess vs. Annie
Randall & Beth’s daughters. Deja arrived as a 12-year-old foster kid and was adopted — she’s the eldest, med-school bound, with Malik. Tess is the eldest by birth — dry, out, later a social worker. Annie is the easygoing youngest.
Toby vs. Phillip
Kate’s husbands, in order. Toby — the big-hearted joker from her weight-loss group; Jack Jr. and Hailey’s dad; they divorce in S6. Phillip — her clipped British boss at the music school, husband #2.
Sophie vs. Madison
Kevin’s women, easily crossed. Sophie — childhood sweetheart, married him twice: once at 18 (annulled by divorce), once in his 40s, for good. Madison — mother of his twins; engaged, but he couldn’t say “I love you,” and the wedding day collapsed.
Randall’s two fathers
Jack raised him; William made him and met him 36 years late. The show insists both count — Randall’s sons-of-both episode titles (“Jack Pearson’s Son”) keep the point alive. Deja closes the loop naming her baby William.
Not family — but always in the room
Dr. K
The obstetrician who delivered the Big Three and lost the third — his “sourest lemon” speech talks Jack into adoption and echoes through all six seasons.
Malik Hodges
Deja’s boyfriend from Philly — a teen dad himself, brilliant and steady. Father of Deja’s baby, the future little William.
Cassidy Sharp
A Marine veteran from Nicky’s AA meetings — Kevin’s friend (pointedly never his girlfriend) and proof of his sobriety-era growth.
Scope: all six seasons (2016–2022), flash-forwards included — so spoilers run through the series finale, “Us.” A “†” means the character has died by the show’s furthest-future timeline. Portraits are stills from the This Is Us wiki, cropped and self-hosted so nothing loads from a third-party server. Where a card lists several actors, they are the same character at different ages, listed young → adult.