Christopher French, 21, of Wisconsin, and Alex Cerajewski, 20, appeared in court Tuesday afternoon.
French is charged with aggravated assault of a police officer. Prosecutors say he tried to break through a line of officers on bicycles at Van Buren and Wabash Sunday night.
Cerajewski faces a felony charge of mob action. He was arrested outside the Art Institute of Chicago.
A total of six demonstrators have been charged with felonies.