Mellow is the confirmed player focus
The Steam description directly names Mellow and describes the player as his guide. It does not provide a complete public cast list or explain every relationship.
Why Clocky needs a source label
Clocky is a breakout related search and appears in community discussion, but the checked Steam description does not define that character. A factual profile should identify whether a detail comes from the demo, an official trailer or the release build.
Avoid turning theories into biographies
Endacopia advertises mysteries, secrets and strange characters. Record dialogue and visible actions first; keep motives and identities labeled as interpretations until confirmed.