Frank was a friend of Chrisjen Avasarala's father and her family. He watched Chrisjen grow up. He recounts a story of how Chrisjen insisted on playing cards with the grown-up men but, when it came time for her deal, she made her own unique rules and gave herself a huge lead to ensure she won. To Frank, he figured it showed she shared a personality trait with her father that'd made her do whatever it took to win but, it also killed her father.
In "Remember the Cant", Chrisjen Avasarala ruthlessly uses DeGraaf to reveal Martian intel on the whereabouts of their stealth technology. This ultimately exonerates Mars of involvement in the Canterbury attack but, Martian intelligence tracks the DeGraaf's communications back to him and blames him for revealing secret information. DeGraaf is banned from Mars which he had planned to make his long-term retirement home. Chrisjen's penchant for for winning meant sacrificing DeGraaf's reputation and livelihood thus he wouldn't play with her again. His life in shambles, he fakes consulting work and travel until he is found dead, the victim of apparent suicide.
In "Critical Mass", among Franklin's affects, Chrisjen finds files about missing engines which match those of the ships that destroyed the Canterbury and the Donnager. His name is mentioned again after Chrisjen receives dubious reports from Errinwright that the drives were in fact built by Earth, but for a private contract that ends up going through Tycho. The finger-pointing continues and Chrisjen does not seem to believe Errinwright, but she acts as though Frank's death is the whole reason she seems out-of-sorts. She appears to not be ready to show her hand and will do what she needs to stay in the long "game".
- This character does not appear in the book series.
- The telescope in the study of Franklin's study is set up backward according to the show notes in Amazon Video streaming service. It faces in and down instead of out and up.