Alexis (Ancient Greek: Ἄλεξις, c.394 BC – c.288 BC) was a Greek comic poet of the Middle Comedy period. He was born at Thurii (in present day Calabria, Italy) in Magna Graecia and taken early to Athens, where he became a citizen, being enrolled in the deme Oion (Οἶον) and the tribe Leontides. It is thought he lived to the age of 106 and died on the stage while being crowned. According to the Suda, a 10th century encyclopedia, Alexis was the paternal uncle of the dramatist Menander and wrote 245 comedies, of which only fragments now survive, including some 130 preserved titles.

It was said he had a son, called Stephanus, who also wrote comedies. He appears to have been rather addicted to the pleasures of the table, according to Athenaeus.

He won his first Lenaean victory in the 350s BC, most likely, where he was sixth after Eubulus, and fourth after Antiphanes. While being a Middle Comic poet, Alexis was contemporary with several leading figures of New Comedy, such as Philippides, Philemon, Diphilus, and even Menander. There is also some evidence that, during his old age, he wrote plays in the style of New Comedy.

Alexis Colby (born Morell; formerly Carrington, Dexter, and Rowan) is a fictional character and the primary antagonist on the American TV series Dynasty.

The role was originated by Joan Collins in the first episode of the show's second season in 1981 (the character appeared briefly in the first season finale, non-speaking and face unseen). Collins remained on the show until the finale in 1989, and then returned as Alexis for the 1991 miniseries Dynasty: The Reunion.

Alexis' schemes to destroy ex-husband Blake, undermine his marriage to angelic Krystle, and control her children drive much of the action over the series' run. Passionate yet vengeful, Alexis loves her children fiercely and will do anything to protect them, but she often ignores their own needs and desires in place of what she thinks is best. Often seen smoking her signature black Nat Sherman cigarillos^{[citation needed]}, Alexis rises and falls again and again, continually stirring up trouble for all around her.

During the series Alexis is married three additional times, to Cecil Colby, Dex Dexter, and Sean Rowan. Alexis is widowed twice, first by Cecil and then by fourth husband Sean, prompting Alexis' cousin Sable to remark that with Alexis "death is always a simpler solution than divorce." Her third marriage (to Dex) ends in divorce after Alexis catches him in bed with her adult daughter Amanda. The name Alexis uses the most consistently over the course of the series is Alexis Colby, though her marriage to Cecil Colby is her shortest. Alexis is romantically linked to a number of men over the years, including oilman Rashid Ahmed, tennis pro (and Krystle's first husband) Mark Jennings, King Galen of Moldavia, shipping tycoon Zach Powers, Congressman Neal McVane, Blake's brother Ben Carrington, Dirk and Gavin Maurier, and even a near-reconciliation with an amnesiac Blake.