Film:
* The Lord of the Rings: The Fellowship of the Ring (2001): As a Uruk-hai
* The Lord of the Rings: The Two Towers (2002): As a Uruk-hai
* The Lord of the Rings: The Return of the King (2003): As a Uruk-hai
* King Kong (2005): As a Skull Island Native
* The Chronicles of Narnia: The Lion, the Witch and the Wardrobe (2005): As a Dwarf
* The Water Horse: Legend of the Deep (2007): As a fisherman
* The Lovely Bones (2009): As a Police Officer
* The Adventures of Tintin: The Secret of the Unicorn (2011): As a Police Officer
* The Hobbit: An Unexpected Journey (2012): As an Orc
* The Hobbit: The Desolation of Smaug (2013): As an Orc
* The Hobbit: The Battle of the Five Armies (2014): As an Orc
* The Adventures of Tintin: Prisoners of the Sun (2021): As a Police Officer
Television:
* The Lord of the Rings: The Rings of Power (2022-present): As Waldreg
* The Crown (2016-2020): As a Police Officer
* The Shannara Chronicles (2016-2017): As Durin
* Spartacus: Blood and Sand (2010-2011): As a Gladiator
* Spartacus: Gods of the Arena (2011): As a Gladiator
* Legend of the Seeker (2008-2010): As a Guard
* Xena: Warrior Princess (1995-2001): As a Soldier
* Hercules: The Legendary Journeys (1995-1999): As a Barbarian
* The Tribe (1999-2003): As a Leader
* Shortland Street (1992-present): As various roles
Note: This is not an exhaustive list, and Simon Trinder has appeared in many other productions.
You can find more information on Simon Trinder's career on websites such as IMDb and Wikipedia.