Short answers, pulled from the story.
Richard Burbage (the 6th of January 1567 - the 13th of March 1619) was an English stage actor and theatre entrepreneur, widely regarded as the most celebrated actor of his age. He was the first performer to play the title roles in Hamlet, Othello, Richard III, King Lear, and Macbeth, and he held thirteen of the roughly twenty roles longer than 800 lines written between 1580 and 1610.
Burbage was a business associate and close friend of Shakespeare, and he was the leading actor of the Lord Chamberlain's Men, which became the King's Men in 1603. He created the title roles in the first performances of many of Shakespeare's plays. The Burbage brothers also gave Shakespeare and other company members half the shares in the Globe Theatre.
After Richard and Cuthbert Burbage could not renew the lease on The Theatre with landowner Giles Allen, they dismantled the building and moved its beams and posts across the Thames to the south bank. The material was reassembled into the Globe, which opened in 1599. The Burbage brothers kept half the shares and gave the rest to Shakespeare and other members of the Chamberlain's Men.
Burbage died on the 13th of March 1619 at the age of 52 and was buried in St Leonard's, Shoreditch. His death caused such a public outpouring of grief that it threatened to overshadow the official mourning for the death of Anne of Denmark. His gravestone was said to have read "Exit Burbage," though the stone is now lost.
Burbage was also a painter, having learned the basics of colour and painting technique while working in his father's theatre as a child. Some scholars attribute the famous Chandos portrait of Shakespeare and the "Felton" portrait to Burbage. A painting at Dulwich College was long considered his work until 1987, when it was found to be probably misattributed to a North Italian painter.
Some scholars have proposed that Shakespeare's Hamlet was partly inspired by the death of James Burbage in February 1597 rather than by the death of Shakespeare's son Hamnet. A discrepancy between the dates of Hamnet's death, James Burbage's death, and the earliest drafts of Hamlet leads researchers to suggest that Burbage's grief and possibly an earlier performance of a proto-Hamlet character influenced the play.