If you go by previous success' you'll see which are Seth's father, it appears his father signs an S and M with no particular detail. The thing is everybody who got a success from Gene Wilder previously has his leaned his wife signed most of his mail and this has now been confirmed by the best authen...

Seth's father signs his mail and sends out limited prints to fans.

If its a Spanky address then its an autopen.

Can you be more specific on horror?

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It is Adam West, he signs both full name and awest.

Maybe an autopen, he's awesome in person but I can't see him responding to his mass amounts of fan mail, in this instance the inscription is the biggest tell that its likely an autopen.

Even so he still doesn't sign through the mail, unless maybe its for a special cause.

His father signs his fan mail with a SM.

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