-Your human father
Dianas father is a quirky figure. He works part time in the Theatre when he's not wandering aroun din his book shop at home. It's not unusual for Diana to sneak downstairs in her pyjamas when she was little to listen to her father practicing scenes and wearing funny costumes. He could walk around for days looking like he just got shanghaied from the 20's or late 1800's.
He also got a big insect collection which he is fairy proud of. He once stared at a dragonfly for over several days repeatedly telling her the same sentence over and over again until it got burned into her brain forever. If a dragonfly's lifespan is that of 24 hours, who are we to disturb them in their short life, who are we to judge them?