Insert new custom field in Wordpress [closed]

I'm customizing a website that was made in Wordpress. In a specific part of the site, in the TEAM, there is a photo of a person and next to it is to be added a text field. What happens, is that in the theme where the site was developed there is no such option. In fact, the TEAM option is quite limited. I would like to know if there is a way for me to create a new custom field for this, and for this field to have the content to be displayed on the site (Front End).