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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
a key character
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a key character" is correct and usable in written English.
It can be used when referring to an important or significant character in a story, film, or other narrative forms. Example: "In the novel, the protagonist is a key character who drives the plot forward and influences the other characters' decisions."
✓ Grammatically correct
News & Media
Science
Academia
Alternative expressions(18)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
60 human-written examples
"Joanie will be a key character, and during the film will give birth to Rodney.
News & Media
Mr. Spicer also was a key character in a 1997 army mutiny in Papua New Guinea.
News & Media
Livia Soprano, Tony's mother, was a key character in the early episodes of the series.
News & Media
"It's not a story about magic, though magic is a key character in the story," he says.
News & Media
I have a suspicion of lockstep and everyone looking in the same direction: that's a key character trait in me".
News & Media
There's been uproar over the race change of a key character, rumours of costly reshoots and horrifically awkward promo interviews.
News & Media
I think in Super Street Fighter IV, he's going to be a key character to watch out for".
News & Media
Who? Joey Essex is a key character in one of the UK's most popular reality TV shows, The Only Way Is Essex.
News & Media
Betts then was a key character in a third-term onslaught from the home side: Adelaide kicked eight goals to three to book their semi-final spot.
News & Media
"Some of the stuff we don't even know about because there's so much happening, particularly Bowie, because he was such a key character," said a festival spokesman.
News & Media
Indeed, Mr. Scruggs was a key character in "The Insider," the 1999 film that detailed how he helped win a $248 billion settlement from the tobacco industry.
News & Media
Expert writing Tips
Best practice
When using "a key character", ensure the context clearly establishes the character's importance to the plot, theme, or overall narrative. Provide specific examples of their influence or actions to reinforce their significance.
Common error
Avoid using "a key character" for every prominent character. Reserve it for those whose actions or presence fundamentally alter the course of events. Overuse dilutes the impact of the phrase.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a key character" functions as a noun phrase, specifically a descriptive term, identifying an individual's significant role within a narrative or context. Ludwig provides numerous examples illustrating this function.
Frequent in
News & Media
68%
Science
17%
Academia
7%
Less common in
Wiki
5%
Formal & Business
2%
Reference
1%
Ludwig's WRAP-UP
The phrase "a key character" effectively designates an essential individual within a narrative. As Ludwig demonstrates, it's widely used across various contexts, especially in News & Media. While grammatically straightforward and generally neutral in tone, writers should reserve it for individuals with demonstrably significant influence to avoid diluting its impact. Alternatives like "a central figure" or "a major player" can offer subtle variations in emphasis.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
a central figure
Focuses on the individual's pivotal role, highlighting their importance to the core aspects of the narrative.
an important persona
Emphasizes the individual's identity and significance, particularly in shaping events or influencing others.
a major player
Highlights the individual's active involvement and substantial impact on the unfolding events.
a principal actor
Focuses on the individual's agency and capacity to drive actions and decisions within the narrative.
a leading light
Conveys that the individual is a role model with visionary qualities that make him relevant.
a crucial participant
Highlights the individual's essential role in a specific event or activity.
a pivotal role
Shifts focus to the importance of their function, implying the entire context would be different if it weren't for their performance.
an influential personality
Emphasizes their power to affect or change something.
a notable individual
Highlights that the person in question is worthy of attention or is easily noticeable.
a primary force
Emphasizes the individual's power and influence as a driving factor.
FAQs
How to use "a key character" in a sentence?
Use "a key character" to describe a figure whose actions significantly impact the plot or themes of a story. For example, "The protagonist is "a key character", driving the narrative forward with their decisions."
What can I say instead of "a key character"?
You can use alternatives like "a central figure", "a major player", or "a pivotal role" depending on the specific nuance you want to convey.
What makes a character "key"?
A "key" character is essential to the narrative's progression, influencing the plot, impacting other characters' development, or embodying significant themes. Their absence would substantially alter the story.
Is it always obvious who "a key character" is?
Not always. While protagonists are often key characters, sometimes seemingly minor characters can prove crucial due to their actions, knowledge, or relationships that unexpectedly shift the story's direction.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested