There are a million-zillion different character worksheets spread all over the web. These are designed to help you better understand your character. Nothing wrong with that.
However, to help your readers to understand your character, some of this material actually has to make it into your story.
Customize the details to fit your story. You know your character has red hair and walks with a limp. You know your character is twice divorced and has an only child by the second marriage. These are important things for your reader to know too. It points to the personality of the character.
I’m not talking a big infodump of details, but a scattering throughout the story as it relates.
To add the earlier info to a story, you can use taglines at the end of dialogue.
“You’re quite generous,” he said. Not like his first wife who could refuse a drink of water to a man in a desert. But not like his second wife either, who’d nearly put the two of them and their son in the poorhouse just by her constant donations to charity. No, this woman was right in the middle. Nearly perfect. He smiled at her.
See how that adds so much to the character’s personality? These details are what create depth and interest in a character.
Use character worksheets. Customize them to your heart’s content. And put that info in your story!