The Earl of Sussex's Men was a playing company or troupe of actors in Elizabethan and Jacobean England, most notable for their connection with the early career of William Shakespeare.
Thomas Radclyffe, 3rd Earl of Sussex was one of the most powerful aristocrats during the middle years of Queen Elizabeth's reign; he was named Lord Chamberlain in 1572. Like other prominent noblemen of the period, he kept a troupe of players among his retainers. The limited records of the era reveal the existence of such troupes of actors, like Leicester's Men, Pembroke's Men, or Worcester's Men, mainly in the documents of the cities they visited during their tours of the country; similarly, Sussex's Men enter the historical record when they performed in Nottingham in March 1569. From then through the 1570s they also played in Maldon, Ipswich, Canterbury, Dover, Bristol, and other towns; the troupe had six members during this era. Since their patron was serving as Lord Chamberlain, they were sometimes called the Lord Chamberlain's Men — though they should not be confused with the more famous Lord Chamberlain's Men of the 1590s, the company of Shakespeare and Richard Burbage.
Given their patron's status, it is not surprising that Sussex's Men played at Court several times in this period, most often during the Christmas holidays. Their repertory consisted of anonymous and now-lost plays that are known only by their titles: The Red Knight, The Cruelty of a Stepmother, and Murderous Michael are three examples. The Cynocephali ("Dog-heads"), which the company acted at Court on 2 February 1577, must have been interesting to see. John Adams was apparently the leader of the troupe (he received their fees for them); Richard Tarlton began his career with Sussex's Men in these years, before going to Queen Elizabeth's Men in 1583.