Get 30 Days Free of PEOPLE
See how the tight-knit clan – Alyson Hannigan, Alexis Denisof and daughters Satyana and Keeva – explore life's little adventures together
Updated: Tuesday Sep 24, 2013 | 05:00 PM EDT
By: Karen J. Quan and Shanelle Rein-Olowokere
More from PEOPLE
See More News
44 of 51
The family that dresses together, hops together! The Hannigan-Denisofs step out in cuddly kangaroo costumes for Satyana's first Halloween in Santa Monica.
Copyright © 2013 Time Inc. All rights reserved. Reproduction in whole or in part without permission is prohibited.
In partnership with AOL