Shamsiel also spelled Samsâpêêl, Shamshel, Shashiel or Shamshiel, was the 16th Watcher of the 20 leaders of the 200 fallen angels that are mentioned in an ancient work called the Book of Enoch. The name means "sun of God", which is fitting since it has been said that Shamsiel taught men the songs of the sun during the days of Jared or Yered. Shamash

Shamash

Shamash was a native Mesopotamian deity and the sun god in the Akkadian, Assyrian and Babylonian pantheons. Shamash was the god of justice in Babylonia and Assyria, corresponding to Sumerian Utu...

 (the Babylonian sun god) may share some mythological basis with Shamsiel.

Shamsiel is said to lead 365 legions of lesser angels in the Zohar

Zohar

The Zohar is the foundational work in the literature of Jewish mystical thought known as Kabbalah. It is a group of books including commentary on the mystical aspects of the Torah and scriptural interpretations as well as material on Mysticism, mythical cosmogony, and mystical psychology...

 and it is said that he was assigned by God to guard the Garden of Eden

Garden of Eden

The Garden of Eden is in the Bible's Book of Genesis as being the place where the first man, Adam, and his wife, Eve, lived after they were created by God. Literally, the Bible speaks about a garden in Eden...

 after Adam and Eve

Adam and Eve

Adam and Eve were, according to the Genesis creation narratives, the first human couple to inhabit Earth, created by YHWH, the God of the ancient Hebrews...

 were expelled; this would make him a cherub

Cherub

A cherub is a type of spiritual being mentioned in the Hebrew Bible and cited later on in the Christian biblical canons, usually associated with the presence of God...

 if this legend is true. There is apparently some disagreement in sources as to whether or not Shamsiel is a fallen angel; he is still regarded as the ruler of the 4th Heaven and it has been said that he fought on the side of God during the War in Heaven according to some questionable sources. http://raziel.secondfoundation.org/Angels/shamshiel.html

Modern culture

There is an angel

Angel

Angels are mythical beings often depicted as messengers of God in the Hebrew and Christian Bibles along with the Quran. The English word angel is derived from the Greek ἄγγελος, a translation of in the Hebrew Bible ; a similar term, ملائكة , is used in the Qur'an...

 named Shamshel in the anime

Anime

is the Japanese abbreviated pronunciation of "animation". The definition sometimes changes depending on the context. In English-speaking countries, the term most commonly refers to Japanese animated cartoons....

 series called Neon Genesis Evangelion

Neon Genesis Evangelion

, commonly referred to as Evangelion, is a commercially and critically successful Japanese anime series that began airing in October 1995. The series was highly influential, and launched the Neon Genesis Evangelion franchise. It garnered several major animation awards...

, ostensibly named for the ancient Hebrew entity.
A minor character named Samchia appears in the first book in the Fallen series. He is a a fallen angel

Fallen angel

Fallen angel is a concept developed in Jewish mythology from interpretation of the Book of Enoch. The actual term fallen angel is not found in either the Hebrew Bible or the New Testament. Christians adopted the concept of fallen angels mainly based on their interpretations of the Book of...

living on earth as "Samuel Chia" and is the second in-series victim of the books' primary antagonist Verchiel, who kills him by kicking him from a high window.