Police say Cassim Cummings faces two counts of assault and a charge of threatening bodily harm in connection with two other alleged incidents which occurred before last month's stabbing.
Cummings, 20, was arrested after a man was stabbed on a southbound subway train that was approaching Davisville station on the night of Feb. 27.
Police said the victim suffered serious, but non-life threatening injuries when he was stabbed in the neck.
Cummings was arrested on the morning of March 1, just over a day after the man on the subway was stabbed.
The accused faces multiple charges in that incident, including attempted murder and assault with a weapon.
Since his arrest, police say that Cummings has been linked to other alleged incidents.
According to police it is alleged that Cummings grabbed a man by the neck and choked him at Finch subway station on Feb. 1. He is also alleged to have threatened the man.
It is also alleged that Cummings "repeatedly" punched a security guard in the face at North York Centre on Feb. 12.
He was scheduled to appear in a Toronto court on these new charges for these two alleged incidents on Tuesday.