Dalton Insidious: Who Is Dalton Lambert and Who Plays Him?

Dalton Lambert is the son of Josh and Renai Lambert and the child at the center of the Insidious saga, played by Ty Simpkins in Insidious (2011), Insidious: Chapter 2 (2013) and Insidious: The Red Door (2023). Dalton Lambert is the character's full name, so there is no separate real name to find. The actor is Ty Simpkins, billed fourth in the first two films and first in The Red Door, and some credits list the character as Dalton Lambert (archival footage).

Insidious (2011), directed by James Wan, opens with the Lamberts moving into a new house with their sons Dalton and Foster and their baby daughter. Dalton falls from a ladder in the attic, and the next day he cannot be woken. Doctors find no medical cause and declare him to be in a coma. Months later he comes home still unconscious, and the noises and sightings that unsettle the family begin from there. That quiet start is what makes the saga work, because the scares grow out of a child who cannot speak for himself.

He is the lead only in the Lambert family entries. Insidious: Chapter 3 follows Quinn Brenner, and Insidious: Out of the Further follows Gemma Hall. For the order of all six, see insidious movies in order.

Dalton's closest relationship is with his father, Josh Lambert, and the saga treats their bond as the real subject. Josh had the same projection ability as a boy and buried the memory after an old woman's spirit stalked him, as Elise reveals in the first film. By The Red Door the two barely get along after Josh's divorce and the death of his mother Lorraine, and a tense drive to college ends in a fight.

Renai Lambert, played by Rose Byrne, is his mother. She sees a figure in the house in the first film, and in Chapter 2 she senses that something followed the family home. Patrick Wilson plays Josh in the first two films and again in The Red Door, which he also directs. In The Red Door Renai explains that Josh's father, Ben Burton, also projected but saw it as mental illness, and she helps Josh enter the Further to reach Dalton.

His brother Foster Lambert, played by Andrew Astor, is a smaller presence. In The Red Door Foster tells Dalton about a recurring dream of Josh trying to kill them, and later sends Josh a photo of Dalton's painting, which shows that Dalton is in danger. Dalton's baby sister is the youngest of the three children.

Elise Rainier, played by Lin Shaye, is his guide to the Further, and Specs and Tucker are her team. His antagonist is the lipstick face demon, the red faced figure of his childhood. His roommate Chris Winslow, played by Sinclair Daniel, shows him the online video about astral projection and guards his body while he tries it.

In my opinion, Dalton's best moments are the ones where a quiet child is shown to be the strongest person in the room, and The Red Door gives him the most of them. These picks are opinion, not fact.

The attic fall and the unwakeable morning (Insidious, 2011). It could be argued that the saga is never scarier than here, because a doctor simply cannot explain why a boy will not wake. It is the feeling of a hospital waiting room, stretched over a whole film.

Dalton going in after his father (Chapter 2). Perhaps the neatest reversal in the series is that the rescued boy becomes the rescuer. With Elise's ghost helping, Dalton pulls Josh back from a possession that had turned him violent. It is a smaller set piece than the first film's trip through the Further, but it changes who the hero is.

The painted red door (The Red Door). A single art class exercise reopens the whole story, and I think it is the cleverest use of Dalton in the series, because the memory returns through his hands before it returns to his head.

Painting it black. Dalton seals the Further by painting over the red door, which is a very quiet way to end a saga of demons. As such, it is the moment I would show someone new to explain why the Lambert family story lands. If you are new to the series, start with the first film and read on through the Insidious timeline.