We're going to need a bigger list: this is a lot of shout-outs. All books—all respectable books, at least—from around Tristram Shandy's era contained a lot of shout-outs. That's how the author proved that he knew his stuff. But this is Tristram Shandy, and we ought to know by now that Sterne never does anything just like everyone else. He mixes all these in with references to made up authorities, possibly poking fun at the whole idea of having to stuff your work full of ancient philosophers and historians.
Zoroaster, John Chrysostom, Plato, Aristotle (5.1.7)
Shadrach, Meshech, and Abed-nego, (4.21.3)
Don Quixote (4.16.7)
Tully's second Philippic (3.14.2)
Zeno, Cleanthes, Diogenes Babylonius, Dionysius Heracleotes, Antipater, Panaetius, and Posidonius amongst the Greeks;—Cato and Varro and Seneca amongst the Romans;—Pantenus and Clemens Alexandrinus and Montaigne (3.4.2)