film roles, appearing as Timmy in the independent western Brothers in Arms. The following year, he appeared as Kevin O'Doyle, the bothersome next-door neighbor in the fantasy comedy Click. A series of subsequent feature film roles followed, including appearances in The Santa Clause 3: The Escape Clause, Dog Gone, Safe Harbor and Another Harvest Moon, as well as portraying the boy detective Bob Andrews in the Three Investigators film series. Shameless In April 2010, Monaghan was cast as an ensemble cast member on the Showtime comedy-drama series Shameless. On the series, which premiered in January 2011, Monaghan portrays Ian Gallagher, the gay bipolar teenage son of a large dysfunctional Chicago family. Sarah Hughes of The Independent commended Monaghan's portrayal for providing "one of the more nuanced depictions of a gay teenager to be seen on US TV." Matthew Gilbert of The Boston Globe described Monaghan's performance as "extraordinary." And the gay-interest media outlet AfterElton.com cited Monaghan's portrayal of Ian in naming him to its list of "2011's Break-Out TV Actors". In February 2014, Showtime announced it had renewed the series for a fifth season, scheduled to begin airing in 2015. For his work in the fifth season, Monaghan received a Critic's Choice Award nomination for Best Supporting Actor in a Comedy Series. The seventh season began airing in October 2016. The eighth season, consisting of 12 episodes, went into production in May 2017; it premiered on November 5, 2017. The series was renewed for a ninth season which premiered on September 9, 2018. Monaghan announced via Instagram that he would be leaving the series following the sixth episode of the ninth season. However, Cameron returned for the tenth season which premiered in late 2019. 2011 to present Monaghan appears in a variety of episodic television roles. In 2011, he guest-starred as Nick Peyton, a teenage boy accused of murdering his Marine father, on the CBS crime series NCIS. That same year he appeared as Jonathan McKenna on the TNT mystery series Rizzoli & Isles. In 2012, he guest-starred as Eddie Sandow, a 19-year-old who creates a hostage situation after his father is accused of sexual assault, on the NBC crime series Law & Order: Special Victims Unit. Monaghan also appears in a variety of feature film roles. In 2011, he co-starred as high school sophomore Corey Doyle in the Disney teen drama Prom. In 2012, he portrayed Jake, the son