@Augur This particular half-brother I always knew about. Met him once as a kid. But in adulthood I met two other half-siblings I didnt know existed from two different mothers.

My dad was in black ops (Green Berets) and later in life the CIA. He was married to 7 wives throughout his life but his sisters think some of those were likely CIA covers, but they dont really know. Regardless siblings continue to pop up.