Thomas Cromwell Daniel Webb Thomas Cromwell was a key political advisor to Henry VIII. He came to prominence at Cardinal's Wolsey's expense, following Henry's divorce from Katherine of Aragon. Cromwell suggested to Henry VIII that the king make himself head of the English Church, and saw the Act of Supremacy of 1534 through Parliament. His encouragement of the King's disastrous marriage to Anne of Cleves brought about his downfall. Like so many of the King's former advisors, Cromwell was charged with treason and executed at the Tower of London. Daniel Webb most recently appeared as Inspector Lestrade in Masterpiece Theatre's The Hound of the Baskervilles.