We don't have a biography for Decrepit Figure / Mysterious Man yet. Hang in there, or go ahead and contribute one.
Marvel's Runaways Guest cast, played by Ric Sarabia Episode 1x01: Reunion (Nov 21, 2017) Episode 1x02: Rewind (Nov 21, 2017) Episode 1x03: Destiny (Nov 21, 2017) Episode 1x04: Fifteen (Nov 28, 2017) Episode 1x05: Kingdom (Dec 5, 2017)