Request/research adress for real pics various personalities

[Laury row]

Hello,
I research multiple postal addresses to write , and receive real autographed pics of various personalities,
I still like to have valid addresses to receive safe and autographed photos of some ::

Brendon Urie (singer of band Panic at the disco or P!ATD).
Fall out boy (band)
Adam Levine (singer of band Maroon 5)
Michael Seater (actor)
Cast but especially #ACTORS Murdoch Mysteries whether ::
Yannick Bisson, Thomas Craig and Jonny Harris.
Zac Efron (actor,singer)
Ashley Scott (actress and wife Steve Hart).
Leonardo Dicaprio (actor) ?
Christian (Jules) Leblanc, Peter Bergman , Joshua Morrow,Michael Munhey,Billy Miller,Jeff Branson and Daniel Goddard
(ACTORS to The Young and the Restless).
Julie Andrews (actress) and Dick Van Dyke (actor).
Chris Kattan (actor)

I know that's a lot, but primarily, I really look up addresses to write to all those I have noted above,
valid addresses, because I do not know if the addresses are found still valid.

Thanks. Laury.