Katherine McNamara & Harry Shum Jr Have 'Shadowhunters' Reunion at Movie Premiere!

Katherine McNamara steps out for the premiere of Broadcast Signal Intrusion held at iPic Theaters on Tuesday (October 19) in Los Angeles.

The 25-year-old actress showed her support for her former Shadowhunters co-star Harry Shum Jr, who stars in and executive produces the new movie.

Click inside for a cute photo of them together…

“Reunited with the one and only @HarryShumJr at his #BroadcastSignalIntrusion screening! I’ve never been so ecstatic, proud, and profoundly disturbed while simultaneously perching on the edge of my seat. So so thrilled for you! ❤︎, Biscuit 📹👤👀 #adventuresofmagnusandbiscuit,” Katherine captioned photos from the premiere. Check out her post below!

Also in attendance at the premiere were Harry‘s wife Shelby, his mom Julia, co-stars Kelley Mack and Justin Welborn, director Jacob Gentry and actor Luke Youngblood.

Broadcast Signal Intrusion follows video archivist James (Shum), who while logging tapes of decades-old TV broadcasts, discovers a surreal and disturbing clip that James believes is the product of a mysterious broadcast signal hacking. His discovery takes a sinister turn when he tracks down similar broadcast intrusions that send him on an obsessive mission. Now James must confront two very real possibilities: that the videos may be clues to a crime beyond all comprehension; and that whoever was behind them may be very aware that James is coming uncomfortably close to the truth.

The thriller will premiere in theaters and on digital THIS Friday (October 22). Check out the trailer below!

Click through the gallery for more photos from the premiere…