It depends on the editor. However, there are certain places where we can expect to find capital letters:
Romeo.
Yes, you would get soaked.
The Globe Theater, one of many.
she is a character in one of shakespeares plays called othello and shes a bit of a hoe
No but it is one of the most famous plays written by shakespeare
Shakespeare creates a unique atmosphere for each one of his plays.
Write one.
In one of his great plays, his main characters, in a love play, were Romeo and Juliet.
Herman's Hermits.
No. We know of at least one, Sir Thomas More, that he and his collaborators could not get past the censors.
The Bard
Mitochondria is the organelle that is typically capitalized. It is known as the powerhouse of the cell and plays a crucial role in producing energy.