Sam

Personality
Sam is a very grumpy cat, he is constantly complaining about everything and annoyed by literally anything anyone does. Sam doesn't seem to have any faith in the world left, it is very possible he has depression. He shows almost no emotion except for anger, he doesn't want people to become close with him, which explains the fact he never told Scott and Lulu his name, he could have major trust issues with strangers as well. Sam doesn't talk about himself at all, not wanting others to know too much about him, since he's afraid they'll use his weaknesses against him. Though, Sam didn't ditch the two young teenagers at once after meeting them, showing he is not completely heartless like he wants people to see him. Sam is a very brave and smart cat, but doesn't know what to do with these traits. He is evasive to others' touch as well.

Family
?

Scott
Sam doesn't seem to like Scott very much, he is annoyed and angry at the younger cat's snarky remarks. Sam does seem to care about Scott's wellbeing as he agreed to stay with the two young teenagers until they were safe. He never told the others his name, implying he is not interested in an emotional connection or friendship.

Luda
Sam treats Lulu the same as he treats Scott, although he is less annoyed by Lulu.

Abby
Sam and Abby barely had any interaction yet, but Sam showed little to no interest in Abby, only seeing her as a replacement babysitter for Scott and Luda.

Trivia

 * Sam is the only calico character created for the series so far, apart from possible cameos.