Jim Byrnes (Gary Latimer) and Amanda Tapping (Cmdr. Kate Girard) played father and daughter (Gregory Magnus and Dr. Helen Magnus, respectively) in Sanctuary (2008), a Tapping-produced series in which she starred.
Jim Byrnes (Gary Latimer) also played Joe Dawson in Highlander (1992) from 1993-1998. The Joining (1998) was aired around the same time that Highlander ended, and this episode contains references to a space supply ship called Highlander.
This episode takes place in November 2011 and June 2012.