"Being brave for what we hold dear — our freedoms, our democracy, and each other — it's on us, guys," said the actor at a demonstration in New York City on Saturday.

Mark Ruffalo, along with other Marvel actors, Marisa Tomei, Glenn Close, and Julia Louis-Dreyfus, recently joined the No Kings Protest. Organized on June 14, the event was held to protest against the current US President,

Mark Ruffalo and Susan Sarandon marched in the rain while attending a ‘No Kings’ protest. See which other stars protested.

The Marvel actor joined demonstrators in New York, where huge numbers gathered in protest of the US Army parade and coincided with President Donald Trump's birthday

Tens of Thousands of demonstrators crowded into streets, parks and plazas across the U.S. on Saturday to protest President Donald Trump before a Washington military parade marking the Army's 250th anniversary that coincides with the president's birthday.