John McBain is a fictional character from the soap opera One Life to Live, which aired from 1968 to 2012. He is portrayed as a complex character, often involved in dramatic storylines that include romance, crime, and personal struggles. McBain is known for his strong moral compass and dedication to justice, often working as a detective. The character was played by actor Michael Easton, who joined the show in 2003. McBain's relationships with other characters, such as Natalie Buchanan and Todd Manning, have been central to many plotlines, making him a memorable figure in the series' history.