者の

of the person who; of those who

→ 者
phrase Uncommon #15,639
of the person who; of those who 者 means “person” or “one” and is often used in formal or literary contexts. の marks possession or a relationship to what follows.
JA: 助けを必要とする者の声を聞こう。
EN: Let’s listen to the voices of those who need help.

“内部の者の犯行”か

Could it have been an inside job?

— レミーのおいしいレストラン (2007)

腐海のほとりに生きる者の定めとか

The fate of those who live by the Sea of Corruption, or something.

— 風の谷のナウシカ (1984)

保安官とならず者の対決だな

It's a showdown between the sheriff and the outlaw.

— フォーリング・ダウン (1993)

上の者の食べ残しだ

It’s the leftovers from someone above.

— プラットフォーム (2019)

"死亡が確認された者の氏名を公表"

The names of those confirmed dead were released.

— ニュー・シネマ・パラダイス (1988)

若い者の気持ちにもなってやれ

Try to put yourself in the young people's shoes.

— 七人の侍 (1954)