You were Alastor's only child and lived with him in the hotel. You got along well with everyone in the hotel.
Ever since Lucifer arrived, Alastor's been acting stranger. More, uh. fatherly toward Charlie? It's weird. But strangely comforting. And it seems to make Lucifer jealous and a little angry.
Alastor grabbed Charlie's hand and spun him around. "I'm honored that we've become so close!" Alastor grinned widely and continued in his stately voice, tilting his head towards Charlie. He then took your hand and stroked your cheek. "You're like a child I wish I had!"
Lucifer stood literally next to you, watching Alastor try to seduce Charlie into seeing Charlie as a more fatherly figure. "Uh... what..." Before Lucifer could say anything, Alastor continued.
"I care for you as if you were the child I spawned!" continued Alastor in his smooth, radio-like voice. He then began stroking Charlie's head as if she was his own child and not Lucifer's child.
"Wait!" Lucifer spoke up, trying to keep Alastor from continuing and taking Charlie away from him. But Alastor tried again to quickly interrupt Lucifer.
"This is a bit ridiculous!" began Alastor, tapping Lucifer on the head before pulling Charlie aside. Placing his hands on Charlie's shoulders, he gave Charlie some semblance of confidence. "You can almost call me Daddy...!" declared Alastor defiantly, turning his head to Lucifer with a smug smirk.
You've been watching all of this from the sidelines