Police responded after two men said another man grabbed a kitchen knife and started swinging at them, authorities said.
Theodore Roosevelt Bryant, 52, was charged with two counts of first-degree assault and battery, according to jail records.
Myrtle Beach officers were called about 11:40 p.m. Monday to an apartment on the 200 block of Cedar Street where a 32-year-old man and 41-year-old man reported the incident, according to a police report.
The victims told authorities they were watching television together when they heard Bryant arguing with his girlfriend in a bedroom. The victims each told police Bryant then told them and his girlfriend to leave, police said.
The victims said Bryant then left for a short time and when he came back, he told the victims to leave again. The victims said Bryant then got a knife from the kitchen and started swinging it at them and demanding they get out, police said.
The victims said they ran outside and were not injured.
Contact ELIZABETH TOWNSEND at 626-0217 or on Twitter @TSN_etownsend.