I think Clarissa Mao (Melba) is also more interesting in the book. In the book she's the boss of the maintenance crew, but is way out of her depth. Her subordinates figure it out and lend her a hand, and she forms a rapport with them.
When Ren finds the bomb she planted, she is legitimately torn about having to kill him, and his death haunts her long afterwards.
In the show she comes across as a sociopath who kills her boss on the first day of work.



