Before pursuing an acting career, Zach Roerig played football and wrestling as a student of Montpelier High School. He also worked for his father, making gravestones.
His first major on-screen role came in 2005, when he took over the role of Casey Hughes in the daytime soap As The World Turns. Despite the popularity of his character - his pair-up with Alexandra Chando was a hit with viewers - he left the soap in 2007 to join another drama, One Life to Live; he left later that year.
In 2008, he took a recurring role in the third season of Friday Night Lights, appearing as a cowboy wooing Adrianne Palicki's Tyra. The following year, he joined the cast of the CW series The Vampire Diaries.
- Flutter Kick (2005)
- Tie A Yellow Ribbon (2007)
- Dear Me (2008)
- Assassination of a High School President (2008)
- Official Selection (2008)
- As The World Turns (regular, 2005-2007)
- One Life to Live (regular, 2007)
- Friday Night Lights (recurring, 2008-2009)
- The Vampire Diaries (regular, 2009-present)