From Kerbal Space Program Wiki
Mortimer Kerman is the KSP Finances guy. He is the only Kerbal to have wrinkles, which most likely means he is one of the older Kerbals.
|“||He's an accountant, called Mortimer. He doesn't have many friends, but he likes things to be under control and arranged in right angles. This job is pretty stressful for him.||”|
Whole-body 3D model published by shacknews.com
- "Kerbal Space Program introducing Administration Building to Career Mode"shacknews.com 2014-9-19