Seth and Leah Clearwater
Messer
Messer
lia pronounced lay-A as in princess lia.
Braden
I wish I knew... >_<
Opinions may be subject to bias.
No last name is given to Seth Rogens character.
Seth Gabel and Peter Gabel are not related. Seth's official last name is Cosentino. Gabel is his stage name. Peter Gabel is the only child of Martin Gabel.
it is unknown
Pelle Seth's birth name is Per Seth.
Seth Gabel's birth name is Seth Cosentino.
Seth Knight's birth name is Seth A, Knight.