
1) Actor of Alexander the Great 2) King of Iolcus
Found on
https://www.crosswordclues.com/clue/thessalus

In Greek mythology, the name Thessalus is attributed to three individuals, all of whom were considered possible eponyms of Thessaly. ...
Found on
http://en.wikipedia.org/wiki/Thessalus
[physician] Thessalus, (Θεσσαλός), a physician from ancient Greece, and the son of Hippocrates, the famous physician. He was the brother of Draco, and father of Gorgias, Hippocrates III, and Draco II. He lived in the 5th and 4th centuries BC and passed some of his time at the court of Archelaus I of Macedon, (reigned 413-399 BC). He...
Found on
http://en.wikipedia.org/wiki/Thessalus_(physician)
No exact match found.