The actors have not forgotten about the BioWare franchise holiday.
The Mass Effect fan holiday "N7 Day" is approaching. It is not yet clear how BioWare plans to celebrate this day, but the plans of some of the actors who participated in the franchise projects are already known.
A broadcast is scheduled for November 7, which will be hosted by Jennifer Hale (the voice of female Shepard).
Streamly has published an announcement of the event, but the specific names of the actors are not mentioned. It seems that the purpose of the broadcast is for fans to get autographs:
Join Jennifer Hale and the cast of Mass Effect for a special autograph session in honor of N7 Day!