Prince Hamlet is a fictional character, the protagonist in Shakespeare's tragedy Hamlet. He is the Prince of Denmark, nephew to the usurping Claudius and son of the previous King of Denmark, Old Hamlet. Throughout the play he struggles with whether, and how, to avenge the murder of his father, and struggles with his own sanity along the way. By the end of the tragedy, Hamlet has caused the deaths of Polonius, Laertes, Claudius and his two childhood friends Rosencrantz and Guildenstern. He is also indirectly involved in the deaths of his love Ophelia (drowning) and of his mother Gertrude (poisoned by mistake). Hamlet himself is the final character to die in the play.

Perhaps the most straightforward view sees Hamlet as seeking truth in order to be certain that he is justified in carrying out the revenge called for by a ghost that claims to be the spirit of his father. The 1948 movie with Laurence Olivier in the title role is introduced by a voiceover: "This is the tragedy of a man who could not make up his mind."

William Shakespeare (baptised 26 April 1564; died 23 April 1616) was an English poet and playwright, widely regarded as the greatest writer in the English language and the world's pre-eminent dramatist. He is often called England's national poet and the "Bard of Avon". His surviving works, including some collaborations, consist of about 38 plays, 154 sonnets, two long narrative poems, and several other poems. His plays have been translated into every major living language and are performed more often than those of any other playwright.

Shakespeare was born and brought up in Stratford-upon-Avon. At the age of 18, he married Anne Hathaway, with whom he had three children: Susanna, and twins Hamnet and Judith. Between 1585 and 1592, he began a successful career in London as an actor, writer, and part owner of a playing company called the Lord Chamberlain's Men, later known as the King's Men. He appears to have retired to Stratford around 1613 at age 49, where he died three years later. Few records of Shakespeare's private life survive, and there has been considerable speculation about such matters as his physical appearance, sexuality, religious beliefs, and whether the works attributed to him were written by others.

David Tennant (born David John McDonald; 18 April 1971) is a Scottish actor. In addition to his work in theatre, including a widely praised Hamlet, Tennant is best known for his role as the tenth incarnation of the Doctor in Doctor Who, along with the title role in the TV serial Casanova (2005) and as Barty Crouch, Jr., in the film Harry Potter and the Goblet of Fire (2005).

Tennant was born in Bathgate, West Lothian, Scotland, the son of Essdale Helen (née McLeod) and The Rev. Alexander McDonald (known to family and friends as Sandy McDonald). He grew up with his brother Blair and sister Karen in Ralston, Renfrewshire, where his father was the local Church of Scotland minister. Tennant's maternal great-grandparents, William and Agnes Blair, were staunch Protestants from Derry in Ulster, the northern province of Ireland, and were among the signatories of the Ulster Covenant in 1912; William was a member of the Grand Orange Lodge of Ireland. Tennant's maternal grandfather, footballer Archie McLeod, met William and Agnes's daughter Nellie while playing for Derry City.