We’re just days away from the start of Gatecon: The Celebration in Vancouver, British Columbia, and the convention organizers have wowed Stargate fans who plan to attend the 5-day event with a last-minute addition to the line-up.

Stargate Universe co-star Alaina Huffman will be at Gatecon, set for September 1 to 5 — this weekend! Alaina played Destiny‘s medic, Lt. Tamara “T.J.” Johansen, on the series.

Science fiction fans will also know her from her roles as Abaddon on Supernatural, Black Canary on Smallville, and Nikki in the final season of The 100. More recently she has appeared on Riverdale, in the recurring role of Twyla Twyst.

Alaina Huffman

Alaina will be at Gatecon this weekend alongside her SGU cast mates David Blue (“Eli Wallace”) and Mike Dopud (“Varro”). SGU fans will also want to meet actor Bill Butt, who plays the fan-favorite background character nicknamed “Balding Asian Guy” (B.A.G.).

Gatecon: The Celebration is run by fans, for fans, with proceeds raised for charity. There are 50 guests on the roster as of this publication, including Teryl Rothery, Paul McGillion, David Nykl, Erick Avari, Peter DeLuise, Gary Jones, and many more. (Check out the full and up-to-date list at Gatecon.com.)

One other last-minute change: unfortunately Narim actor Garwin Sanford has had to drop out of this year’s event.

Can’t be in Vancouver this weekend? GateWorld will be on site to bring you interviews and special coverage, and you can catch some special events from the stage for free at “Dial the Gate.” But if you want to jump in with both feet and enjoy the entire convention from the comfort of your home, this year Gatecon organizers are offering the first-ever “Replicator” digital tickets ($75). That will let you livestream more than 14 hours of stage panels.

Head to Gatecon.com for more information, and we’ll see you there! I’ll be hosting the Friday afternoon panel with actors Robert Murray Duncan (“Seth”), Eric Breker (“Colonel Reynolds”), Bill Butt, Michael Coleman (“Brain Storm”), and Wormhole X-Treme! team members Jill Teed and Herb Duncanson.

On Twitter: @GateconE