Wallace’s exclamation “Sweet Neptune” has precedent in comics.
Wonder Woman swore in the names of both Greek and Roman gods. When any reader asked why she referenced both pantheons, the standard explanation was that the Roman deities were avatars of the Greek ones, different to appeal to different cultures, but the same in their divine essence.
And sometimes her oaths were even declared in the names of actual historic persons, the poet Sappho being one example.
So, over the years we got:
Thunderbolts of Jove!
By the wings of Mercury!
Shades of Pluto!
Suffering Sappho! [ Not to be confused with Sylvester J. Pussycat’s well-known Thufferin Thucotash! ]
And one declaration also used by her colleague (and one-time lover) Aquaman, Great Neptune!
Wallace would approve, don’t you think?
April 15, 2016