Satinav Schweiger is a Sim created by Karu Katerchen and member of the second generation of the Schweiger family. He's only playable in The Sims and The Sims 3, while he's already deceased in The Sims 2.
Life leading up to The Sims 3 Edit
He lives with his parents in a similar mansion like in The Sims. In school he probably met Ann Livingston for the first time and liked her curiosity about him. So it did not take long until they fall in love.
Life leading up to The Sims Edit
When he's not at work he plays chess or reads books all day. Not much more is known about him.
Life leading up to The Sims 2 Edit
Not much is known about him since he is deceased before the start of The Sims 2.
The Sims 3Edit
Although he's a teenager in The Sims 3, he works in a part-time job as a Bookstore Clerk. Most likely because of the books he could read there.
He works in the Medicine career as a Medical Researcher and already has all the skills to get a promotion.
The Sims 2Edit
While he worked in the Medicine career in The Sims, he works as a Scholar in the Science career in The Sims 2. It is possible that he reached the top of the Medicine career and got moved to the Science career (that would have been possible in The Sims).
The Sims / The Sims 2Edit