Look at this article
Due to a scheduling conflict with the filming of the actress from The X-Files will not be able to make act of presence to the edition 2018 from the Comiccon of Montreal. Noooooooon!
However, it was learned that the actors of the same series Mitch Pileggi (assistant director Walter Skinner) William B. Davis (The Cigarette Smoking Man) will be present!
You can consult the list of the guests is revealed here.
The Comiccon de Montréal will be held from 6 to 8 July at the Palais des congrès