S1 E13 (Stuck in the Metal With You) is directed by Jeff Wamester. The Guardians start the episode by landing on the planet Retsemaw (Wamester reversed).
Thanos' personal guard; The Black Order, will appear in the forthcoming Marvel Universe movie: Avengers: Infinity War. Whilst Odin's appearance in the Odinsleep harks back to the original Thor film, which paved the way for Loki's usurping of the throne - whilst in this episode we hear that Thor currently rules in Odin's absence.