Greek text with Υ as Υ{\displaystyle \Upsilon }Cyrillic У, Latin Y and Greek Υ and ϒ in FreeSerif
Unicode names:

CYRILLIC CAPITAL LETTER U
LATIN CAPITAL LETTER Y
GREEK CAPITAL LETTER UPSILON
GREEK UPSILON WITH HOOK SYMBOLThe first three letters aret the red ones in this Venn diagram.
Own work
WatchduckYou can name the author as "T. Piesk", "Tilman Piesk" or "Watchduck".