When engaging in communication with other faction leaders in Sid Meier's Alpha Centauri, a slideshow of images relating to that leader plays in the corner of the screen. These give us neat little visual insights into the past lives of each character, such as Morgan having played football in high school and Santiago having been a boxer for some part of her life. It also lets us see what they looked like when they were kids, which is just an adorable little detail.
Here is each slideshow for the original 7 faction leaders:
Deirdre
Santiago
Yang
Morgan
Zakharov
Miriam
Lal