Suliman Mohamed was arrested on Monday and charged with one count of participation in the activity of a terrorist group and one count of conspiracy to participate in a terrorist activity.
Mohamed, wearing a brown hooded jacket and a small beard, appeared in person at the Ottawa courthouse on Tuesday morning.
The judge ordered him to have no contact with twin brothers Ashton and Carlos Larmond, who were arrested Friday and face charges including participation in the activity of a terrorist group.
RCMP have said the three conspired to participate in terrorist activities. CBC News has learned that Ottawa police had the Larmond brothers on their "radar."
Outside the courthouse, Mohamed's father Idris Altahir said his son "doesn't participate in these things."
“He’s a very normal person, quiet polite and generous," he said.
"I’m waiting now to see, with all this shock, what it is they have for him."
Mohamed is scheduled to appear in court again on Feb. 12.