Jack Michael McMullen is an English actor and writer, best known for his roles in Waterloo Road, Little Boy Blue, Brookside and Grange Hill.

McMullen made his television debut as Josh McLoughlin on the Channel 4 soap opera Brookside, playing the role from 2002 until the show's final episode in November 2003. He won two British Soap Awards for his role in the show; the first for Best Newcomer, and the second for Best On-Screen Partnership with co-star Sarah White.^[1] McMullen went on to appear as Timothy "Tigger" Johnson in the long-running BBC One children's television serial, Grange Hill, appearing from 2004, initially in a guest role.

He was in an episode of the BBC One drama series The Street, then appeared in The Bill.^[2] Next, he starred in BBC Switch's Proper Messy.^[3]

He was in an episode of the BBC One medical soap opera Doctors as half of a young gay couple who run away from their homes.

From 2010 to 2012, he played troublemaker Finn Sharkey in the BBC One school-based drama series Waterloo Road.^[4] On 4 June 2011 he appeared in the BBC One medical drama series Casualty, as Ethan, the friend of a patient. On 27 December 2011, McMullen appeared in Fast Freddie, The Widow and Me.

In 2013, McMullen appeared in the film The Knife That Killed Me.

In June 2021, McMullen starred alongside Sean Bean and Stephen Graham in the BBC series Time.^[5][6][7]