Answer:
1st Question: In Act 1, the most important character could be argued to be Julius Caesar. Although he does not appear in many scenes, his presence is felt throughout the play. He is depicted as a powerful, ambitious leader who has won the love of the people but also earned the jealousy and suspicion of some of his fellow senators. Caesar's decision to attend the Senate on the Ides of March sets the stage for the tragic events that follow. His assassination marks a turning point in the play, leading to political upheaval and the rise of new leaders. Overall, Caesar's character and actions have a significant impact on the plot and themes of the play.
2nd Question: Based on Act 1, it is difficult to determine Shakespeare's opinion of democracy as practiced in America today, as the play takes place in ancient Rome and focuses on a different form of government. However, the play does explore themes of power, leadership, and the dangers of mob rule. The character of Brutus, who is conflicted about joining the conspiracy against Caesar, expresses concerns about the potential for tyranny and the importance of defending the rights of the people. This could suggest that Shakespeare valued the principles of democracy, but also recognized the challenges and risks involved in its practice.