Photo courtesy of NBC

Former ER star Noah Wyle was among 100 protesters arrested on Capitol Hill today during a demonstration urging Congress not to cut Medicaid. The AP reports that the protesters were affiliated with ADAPT, a disability rights organization.

Wyle, who was on the popular NBC hospital drama from 1994 to 2005, has been active with a number of causes and organizations, from Doctors of the World to the Worldwide Wildlife Fund. In 2004, he also served as a spokesman for Cover the Uninsured, an organization pushing for health insurance to be provided to the more than 40 million Americans who don’t have it.

He’s the second actor of note to be arrested in D.C. in recent months. In mid-March, George Clooney—who also starred on ER—was arrested at a protest outside the Sudanese Embassy. Looking further back, in August 2011 actress Daryl Hannah was arrested outside the White House during a protest against the Keystone XL pipeline.