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Former "ER" star Noah Wyle was among 100 protesters arrested on Capitol Hill Monday 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 a regular on the long-running popular NBC hospital drama until 2005, has been active with a number of causes and organizations, from Doctors of the World to the Worldwide Wildlife Fund. 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, including children, who are without coverage.

Wyle is the second "ER" actor to be arrested in D.C. for a good cause recently. In March, George Clooney was arrested at a protest outside the Sudanese Embassy.