Gillenormand is Marius's grandfather, who coerced his dad into giving him up and then spent his childhood being a textbook abuser.

Tholomyes is Cosette's father, who seduced Fantine and then walked out on both her and the kid like it was a joke a soon as they were no longer convenient.

...they could both be Republican frontrunners this year, is what I'm saying, but the plot requires one of each. I think.