Tertiary characters, simply put, are the third most important characters in a story. They pop up in one or two scenes, say one or two lines, then they are gone!
But that does not mean they aren’t important. No sir. Tertiary characters are all around us in life, they are the baristas who give us our morning coffee, the bus drivers who might let us on for free, or that person in the queue desperate to whine about something (probably the queue). If these characters surround us for real, then they should surround our central characters in movies too.
Like primary and secondary characters, tertiary characters need to be fully fleshed out. Even if they only appear in one scene, they deserve as much thought as the other characters. A good tertiary character should make you think; “I wonder what their story is? I wonder what they are going to do next?”
Tertiary characters are so important but are, sadly, often overlooked. These characters add to the tapestry of a great story and can help communicate themes, tone, and atmosphere.
Below is a list of memorable tertiary characters. Each one owns their scene and goes to show how good they can be, when they are written with the care and attention they deserve.
Yvonne’s friends – Shaun of the Dead

Shaun of the Dead – Edgar Wright (2004)
Shaun of the Dead is full of memorable scenes. Visual comedy is used perfectly throughout the film. One of the most memorable scenes is actually a scene that involves five tertiary characters.
When Shaun and his group are anxiously trying to get to The Winchester, they bump into Yvonne and her group – which is an exact mirror of Shaun’s. They walk past each other saying hello to their equivalent character, then they are on their way! It’s a great visual gag and for such an inconsequential scene, involving five characters we do not see again, it is very memorable.
The Jesus – The Big Lebowski

The Big Lebowski- Joel and Ethan Coen (1998)
‘The Jesus’ steals the scene and goes to show what a good tertiary character can be. Tertiary characters should have good interaction with the other characters. They need to bounce off each other which gives relevance to the character. John Goodman’s face, for example, when ‘The Jesus’ is talking is fantastic.
But, although it is important these tertiary characters have a background, perhaps they took it a little too far with The Jesus Rolls? This is not a review article though, so I will just leave it there…
All the other toys in the Toy Story Quadrilogy

Toy Story – John Lasseter (1995)
Toy Story just wouldn’t be Toy Story without all the other toys. To create a realistic environment the writers created a whole host of characters to fill the world of Toy Story. After all, no kid Andy’s age only has a couple of toys do they. There are plenty of secondary characters but it’s The Shark (“I’m Woody. Howdy. Howdy. Howdy”) the etch a sketch and the bookworm that help make the world feel real and very considered.