My Gasters (Undertale, Underfell, Fellswap Red, Underswap.)
W.D/Gaster: He is a very calm person! He is a devoted father who is constantly concerned about his two sons. He admits he was not an amazing or perfect father, but he tried and treasured the little moments he had with his sons before falling into the Core. He tries his hardest to make up for lost time with his sons after being dragged back! He is involved in their lives and frequently offers to spend time with them. (He keeps up with both of them, and his sons both adore him.) He makes sure to be there for his sons as often and as much as he possibly can!
Salamander: He's strict and a little cold. He, like W.D, is a devoted father who is concerned about his sons. In the world they came from, he showed them as much love as he could. He has the highest LV of his sons and can be cruel when his family is threatened. He also has a commanding and demanding demeanor. He can get anyone to listen to him by slightly raising or lowering his voice to dangerously calm levels. Every weekend, he makes up for lost time with his sons by having tea with them. He makes an effort to mend any broken bonds they may have, and his sons adore him. He refuses to speak of his time in the void.
Coral: He is the father of Stretch and Blue! He is, without a doubt, an oddball! He is widely regarded as a bright and cheerful individual. He adores his sons and expresses concern for them whenever possible. But don't underestimate him! Coral is a fierce and protective father to his sons, and he will drop any cutesy persona he puts on to deal with the problem. He, like the other Gasters, is extremely intelligent and dangerous. He, too, fell into the void and is attempting to make up for lost time with his sons. He tends to become defensive and protective over his sons and he's working on it. He would do anything for his sons!
Sirius (named after the hound Sirius Black): He is the father of Ebony and Hound. He is a strict and cold person with his own eccentricities. Despite his temper and coldness, he is a devoted father who adores his sons. He would go to any length to protect his boys, as evidenced by his LV. He retains his astute and dangerous personality, as does Coral, but he is terrible at concealing it. He can't act, so he avoids trying to be cheerful and kind. He is always kind to his sons and spends as much time as he can with them. He is also a great source of comfort for his sons.