Well, let me tell you some things:
1. what you are describing is Tudor Britain (with Henry VIII, Elizabeth I and Shakespeare), not the Victorian Age (roughly 19th century with obviously Queen Victoria)
2. There are multiple leaders in civIV, you need to be better informed before posting. England has Queen Elizabeth I. and Victoria as its leaders, and they both have different 'traits/behaviour' and perhaps other differences (unique units, city lists, etc.?). The latter we do not know yet precisely.
3. Other announced leaders include, George Washington and Theodor Roosevelt for the Americans, Gandhi and Ashoka for the Indians, Mao and Qin Huang Di for the chinese, Napoleon and Louis XIV, le roi-soleil for the French. With the last example, we know that Napoleon will lead the French to militaristic victory (aggressive play), while Louis will play more the cultural way.
Other leaders we know are Caesar, Hatschepsut.
m