Who introduced 'dramatic blank verse' in English literature?

Cristopher Marlowe was the greatest dramatist before Shakespeare.
- Christopher Marlowe, (baptized Feb. 26, 1564, Canterbury, Kent, Eng.—died May 30, 1593, Deptford, near London), Elizabethan poet and Shakespeare’s most important predecessor in English drama, who is noted especially for his establishment of dramatic blank verse. 

Some of Marlowe's literary works:
- Doctor Faustus,
- The Jew of Malta,
- Tamburlaine the Great

Source: Britannica.com