Liam Neeson and Nate Parker are welcoming aboard some fellow passengers. Variety reports Julianne Moore, Scoot McNairy and “Downton Abbey” actress Michelle Dockery have all joined the cast of Jaume Collet-Serra’s in-flight thriller “Non-Stop.”

Neeson plays an air marshall who is confronted – via text message! – by an America terrorist who claims to be aboard his flight. The villain threatens to kill a passenger every 20 minutes unless Neeson kills himself. Parker will play a passenger on the flight who helps Neeson solve the mystery while there’s no word just yet on who the new cast additions will play. Filming is set to begin in New York City on November 1st. John Richardson and Chris Roach wrote the script.

McNairy has been on an upward swing since breaking out in Godzilla reboot director Gareth Edwards’ low budget thriller “Monsters.” He can be seen in Ben Affleck’s political thriller “Argo”, out this weekend, and soon in Andrew Dominik’s “Killing Them Softly” opposite Brad Pitt. He also recently wrapped up filming on Steve McQueen’s “Twelve Years a Slave.”

Dockery was last seen on the big screen in Joe Wright’s “Hanna” and will next also appear in Wright’s “Anna Karenina”, but is most known for her role as Lady Mary Crawley on PBS’ mega-hit “Downton Abbey.” Curiously, several of Dockery’s audition tapes for high profile films were leaked online in recent weeks – Rob Marshall’s “The Thin Man” and “Into the Woods” among them – indicating there’s interest from her side in a more visible big screen career.