He's Yukio's sempai, he's practically his adoptive uncle.

United by the poet-General Henrique Rosa (the adoptive uncle of Fernando Pessoa), many of the literary figures would help to establish the magazine Orpheu.

Alonzo Baptiste (adoptive paternal uncle, deceased)

Edmund Winslow (adoptive paternal uncle)

Magni's adoptive uncle Loki saved his life by killing Balder.

He is also the adoptive uncle of Aladar, the uncle of Suri, the younger brother of Plio and the son of Yar.

Derek Frye (adoptive uncle)

Sean Cudahy (adoptive uncle)

Jack Morgan, the protagonist, is a fourteen-year-old boy, raised by his adoptive uncle, Virgil Morgan, as a professional thief and confidence artist but presently interested in reform.