The Dark Shadows Alphabet Game

This is a real stretch....

I think it was a great answer!

S is for Mr. Strach.

T is for toddy, the favorite beverage before bedtime in 1795.

u   Scott Upright  A blue whale patron.  or we could say uptight for Roger

V is for Victrola (Quentin's gramphone was undoubtly the Victrola Brand)

W is for Walter Morgan (Matthew's brother).

X is for Xanthos     Etymology: New Latin, from Greek, from xanthos: yellow <xanthene>
(Nathan Forbes uniform pants were YELLOW)

Y is for years. 5 that DS was on the air.

Z is for zenith, the height or culminating point of popularity DS reached in 1969 (and perhaps the television brand many fans watched it on).

A is for Ankh, a word that must have come up during the Laura storylines at some point.

B is for Bangor, where much Collins business at the hands of Roger, and others throughout the years, happened.

I'm surprised that hasn't come up yet!

C is for Cat (the one Joshua was turned into)

D is for Davenport... as in sheriff. 

E is for eavesdrop-- what everyone did from the other side of the drawing room doors.

F

Fangoria Magazine (which featured a fab article on the WB pilot that never aired)

G is for grave, many of which didn't stay occupied for long.