Note to Hamlet, 2.2.400-401: "Seneca cannot be too heavy, nor Plautus too light"

Seneca (4 B.C.E - 65 C.E.) was a famous Roman author of tragedies. Plautus (c. 254 - 184 B.C.E.) was a famous Roman author of comedies.

Seneca

Perhaps Plautus