James Ironwood/Affiliation

Ozpin
James has been shown and stated to be a very good friend of Ozpin, so much as to call him "Oz" as their greeting and manner of speech shows. They speak rather freely to each other, and both can pick up on subtle cues from each other rather easily.

Glynda Goodwitch
Glynda and James seem to have some past history, as Goodwitch rather sternly says "James" before promptly leaving Ozpin's quarters.