Upgrade
UpgradeBlake Crouch
Characters in Upgrade
5 characters, main characters first.Main characters
Logan Ramsay
Antagonists
Kara Ramsay
Logan's estranged sister, a geneticist who proposes distributing the upgrade to all of humanity.
Supporting characters
Beth Ramsay
Logan's wife, whose relationship with him is strained by his work and its consequences.
Ava Ramsay
Logan and Beth's daughter.
Miriam Ramsay
Logan and Kara's deceased mother, a geneticist whose research underlies the upgrade.