Donald Edmond Wahlberg Jr. is an American singer, actor, and producer. He is a founding member of the boy band New Kids on the Block. He has starred in the TV drama series Blue Bloods and Boston Blue as NYPD and later Boston Police Department Detective Danny Reagan and has had roles in the Saw films, Zookeeper (2011), Dreamcatcher (2003), The Sixth Sense (1999), Righteous Kill (2008), and Ransom (1996), as well as the role of Carwood Lipton in the World War II miniseries Band of Brothers.