Characters in A Portrait of the Artist as a Young Man who reappear in Ulysses

Stephen Dedalus: throughout Ulysses
Simon Dedalus (Stephen's father): in Hades, Wandering Rocks. Sirens
Mary Dedalus (Stephen's mother): remembered in Telemachus, Proteus, Scylla and Charybdis, Circe

Chapter I

Dante (Mrs Riordan): mentioned at 6:378, 8:847, 12:504-18 (not named), 17:479, 18:4-14
Father Conmee: in Wandering Rocks, mentioned at 5:322-31, 9:211, 14:1111, 14:1454-59
Father Dolan: in Circe at 15:3670-76

Chapter V

Katey and Boody Dedalus (two of Stephen's sisters): in Wandering Rocks
Lynch: in Oxen of the Sun, Circe
Cranly: mentioned at 1:159, 2:307, 3:451, 9:21, 9:36, 9:136, 9:978
Temple: mentioned at 2:257, 3:112
MacCann: mentioned at 2:256 (spelled McCann)
Dixon (medical student): in Oxen of the Sun (same character?)

See also Characters in Dubliners who reappear in Ulysses.