In the 2017 film "John Wick: Chapter 2", what is the name of the crime lord who gives John a marker?

In John Wick: Chapter 2, the crime lord who gives John a marker is Santino D’Antonio.

Santino is an Italian crime boss played by Riccardo Scamarcio. Before the events of the film, he helped John Wick complete the “impossible task” that allowed John to retire and marry Helen. In return, John swore a blood oath represented by a marker, a medallion that can be invoked to demand a future service.

Santino calls in that debt by ordering John to assassinate his sister, Gianna D’Antonio, so he can claim her seat on the High Table. John initially refuses, but the underworld’s rules require him to honor the marker. After John completes the assignment, Santino places a contract on John to eliminate a witness and conceal his own role.

The wrong options come from other crime-world characters. Viggo Tarasov is the principal antagonist of the first John Wick, Winston manages the New York Continental, and “Abi” is not the crime lord who invokes John’s marker. Santino’s betrayal ultimately leads John to kill him inside the Continental.