Tom O'Sullivan

Tom O'Sullivan Profile Photo

Characters played by Tom O'Sullivan

David / Walter Double — Alien: Covenant (2017)

David and Walter's double

Bret Buchanan — Observance (2016)

Bret Buchanan is a physicist from a wealthy family whose history is linked to an old scandal involving a dead mistress and a wrongful accusation. He confronts Rachel while acting strangely and demands that she leave her job, leading her to threaten police involvement and deepen Parker’s suspicions.

Ryker — Avarice (2022)

Ryker is one of the armed leaders of the assault and gives the order for the operation to proceed. He helps direct the organized attack that separates Kate, Ash, and Sarah and supports the effort to force Ash into completing the transfers. Kate ultimately fights back against the invaders, and Ryker is killed during the confrontation.

Logging Supervisor — X-Men Origins: Wolverine (2009)

Forestry manager overseeing logging operations and crew safety.

Gavin — It Only Takes a Night (2023)

Gavin is part of Ruby's social circle and tells her that a famous European food blogger witnessed her embarrassing rampage and that it was captured on video. His remark reveals that the incident has attracted an unexpected audience during an already chaotic night out.

Career Overview

Tom O'Sullivan has 17 screen credits in a career dating back to 1988. Their work spans 6 cinematic universes — most prominently Alien with 1 titles. Signature works include Boys Grammar, The Skeleton Tree, Avarice. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.

Personal Facts

Known For
Acting
Gender
male
Known Credits
17
Birth Place
Perth, Western Australia

Known For

Associated Universes

Universe traveler — spans 6 universes

Frequent Collaborators

Credits