Justin Louis, David Blue, Brian J Smith and Jamil Walker Smith have been signed up to co-star opposite Robert Carlyle on the latest Stargate spin-off, Universe.
In this latest incarnation - Stargate on a ship - a group of soldiers, scientists and civilians are forced through a Stargate after their hidden base comes under attack. They emerge on a ship missing in the far reaches of space.
Carlyle, plays Dr David Rush who works to unlock the ship's mysteries and return the group to Earth.
Justin Louis will play Col Everett Young, an experienced Stargate team leader.
David Blue (seen in "Ugly Betty") plays Eli Wallace, a slacker who just happens to be an utter genius with anything he puts his mind to.
Brian J Smith ("Hate Crime") is Lt Matthew Scott, a junior member of the Stargate team thrust into the role of leader well before he's ready.
Jamil Walker Smith ("Sister, Sister") plays Sr Sgt Ronald Greer, a Marine with a temper.