This is the first episode showing the cast changes for the second season in the opening credits. Rainbow Sun Francks (Lt. Ford) is replaced by Jason Momoa (Ronan Dex) and Paul McGillion (Dr. Beckett) is promoted from a regular recurring to main role. The first three episodes of season two have the main cast credits as season one.
When the German Scientist pulls something out of the destroyed wraith dart, she says that it is like the birth of her nephew.
Similar plot to Stargate SG-1 (1997) Season 7's Lifeboat (2003). Daniel Jackson had multiple minds mixed with his own, the only difference here is that Rodney McKay is mostly able to maintain full control of his body.