Is It Shakespeare's Speech or Henry V's?

There's a great scene of this in the play, Henry V. The day of the dawns where the battle's going to take place and it is actually a holiday,. It was St. Crispin's day in England. And one of Henry V's dudes said, oh man, I wish all of those men who weren't working in England were here fighting with us. Then we would stand a chance. This is the famous speech that Henry gives before what is going to be known as the Battle of Agencore.