Henri "Henkka T. Blacksmith" Seppälä (Born 7 June 1980), is the former bassist of the Finnish metal band Children of Bodom from 1995 to 2019. He is also responsible for backing vocals both in studio and live. He is currently the bassist for the project called Moon Shot.
Henkka is a very common nickname for Henri and seppä means blacksmith in English. The reason he has a T. in the middle of his name is his nickname being Torso.