Short answers, pulled from the story.
Theophilus is the named recipient of both the Gospel of Luke and the Acts of the Apostles, addressed in Luke 1:3 and Acts 1:1. His identity is unknown; theories place him as a Roman official, a Jewish priest, a lawyer for Paul, or a symbolic title meaning "friend of God" in Greek.
The Greek name Theophilos means "friend of God," "beloved by God," or "loving God." It was both a common personal name and an honorary title among learned Romans and Jews of the era.
Scholars are divided. Coptic tradition and interpreters like John Wesley hold that Theophilus was a real person, identified as a Jew of Alexandria. A separate tradition argues the name was a symbolic address to any God-loving reader, following the practice of non-canonical gospels such as the Gospel of Thomas and the Gospel of Peter.
Some theologians, including David Pawson, argue that Theophilus served as Paul's legal counsel during his trial in Rome. They point to legal language in Luke's prologue and to the fact that Acts ends with Paul alive and under arrest, suggesting the text was written as evidence for his defense.
Theophilus ben Ananus was High Priest from 37 to 41, the son of Annas and brother-in-law of Caiaphas. Some scholars identify him as the Theophilus addressed in Luke, arguing that the Gospel's focus on Temple rituals and its sustained engagement with Sadducee theology suggest a priestly audience.
Luke uses the Greek word kratiste, rendered as "Most excellent" or in Latin optime, which also appears in Acts when addressing Roman governors. Some interpreters take this as evidence that Theophilus held Roman official rank, though others note the term could be a general honorific rather than a technically correct noble title.