Trevor Lyle Roy, of Penhold, faces another charge after an alleged assault at an anti-racism rally in Red Deer.
Roy, 42, is already facing charges of assault that were filed on Oct. 7 in relation to a different incident at the rally.
Roy was shown on video in an altercation with protesters.
On Sept. 20, a scheduled anti-racism demonstration was held at Rotary Recreation Park. There was a clash between two groups before the event started, as organizers were setting up.
A review of multiple videos from the event led to another assault charge for Roy, the RCMP said Tuesday. He is set to appear in Red Deer provincial court on Nov. 17.
Taylor Michelle McNallie, of Calgary, is also accused of assault. She is scheduled to appear in court on Nov. 10.
With the third set of charges laid in relation to the rally, RCMP said the investigation has been completed and no further charges are anticipated.