Cast

ME: Katie. Mostly a SAHM, occasional waitress, gardener, dreamer, artist, wannabe writer.
D: Dylan. My boy. Chef. Aquarium fanatic. All-round Handyperson
SP: Small Person. Our girl, Emi, willfull Energizer Bunny. 
MIL: Mother-In-Law (mine!)
C: MIL's partner
FIL: Father-In-Law
K: D's older sister.
A: D's younger sister.
S: My brother.
And others added as they come up.