example: JP Voice Actor
To seiyuu as writing this because there are two types of Spanish (Spain) and Latin (Mexico, Venezuela, etc..)

Should be alright to use the People DB to accomplish this.

In the People DB section under Title, enter Spanish Voice Actor then enter their name. You can do the same for any character. Any mistakes can be easily removed - just click the delete button that'll appear after posting.

私は日本語を少し読むと書くをできます。あなたも？

Ok! Very well.
Easy.
Thank you!