Allan is most famous for playing the recurring character of Noah Newman, the ten-year-old son of Nicholas and Sharon Newman (Joshua Morrow and Sharon Case) on CBS soap opera "The Young and the Restless" up to May 9, 2008.
In 2006, he played the role of a younger Andrew Van de Kamp, in one episode of Desperate Housewives.
Allan guest starred on the The Foam Finger episode of Nickelodeon sitcom Drake & Josh playing the young Drake Parker in a flashback scene.
- The Bernie Mac Show (2004)
- CSI: Miami (2005)
- Drake & Josh (2005)
- Commander in Chief (2005)
- Cold Case (2005)
- Twenty Good Years (2006)
- Big Love: Eclipse (2006)
- Desperate Housewives (2006)
- The Young and the Restless (2005 - 2008)
- The Middle (2010)
- Adventures of a Teenage Dragon Slayer (2010)