Steve the Titan is a being the party met in 1158. He has come into contact with them several times since. At first, he seemed to be a titan, if a very powerful one, and interested only in observing the world. Since the mid 1160s, he has taken a more active hand, helping the party at times, and in 1166 spending time at the library at the Temple of Balder, reading the books there.
Steve has always sounded odd, like he's from another place with different ways of talking and slang. He has gradually changed to blend in with the locals, and normally is about human sized, somewhere in the six to seven foot range, varying from day to day.
Eventually the group decided that he must actually be a Vagabond. Steve hasn't really admitted this, but neither has he denied it. Based on his behavior, he seems to be chaotic neutral, but probably closer to true Neutral.
There is another titan, apparently a friend of his, named Paul, who may also be a vagabond. Paul's behavior implies he's lawful neutral - much more adhering to the 'watch but don't interfere' ethos that Steve has pretty much abandoned.