Nadia Santos is Sydney's half-sister, and the daughter of Irina Derevko and Arvin Sloane.
Appearances
Alias
Main cast, played by Mia Maestro
- Episode 4x02: Authorized Personnel Only (Part 2) (Jan 5, 2005)
- Episode 4x03: The Awful Truth (Jan 12, 2005)
- Episode 4x04: Ice (Jan 19, 2005)
- Episode 4x05: Welcome to Liberty Village (Jan 26, 2005)
- Episode 4x06: Nocturne (Feb 9, 2005)
- Episode 4x07: Détente (Feb 16, 2005)
- Episode 4x08: Echoes (Feb 23, 2005)
- Episode 4x09: A Man of His Word (Mar 2, 2005)
- Episode 4x10: The Index (Mar 9, 2005)
- Episode 4x11: The Road Home (Mar 16, 2005)
- Episode 4x12: The Orphan (Mar 23, 2005)
- Episode 4x13: Tuesday (Mar 30, 2005)
- Episode 4x14: Nightingale (Apr 6, 2005)
- Episode 4x15: Pandora (Apr 13, 2005)
- Episode 4x16: Another Mister Sloane (Apr 20, 2005)
- Episode 4x17: A Clean Conscience (Apr 27, 2005)
- Episode 4x18: Mirage (May 4, 2005)
- Episode 4x19: In Dreams... (May 11, 2005)
- Episode 4x20: The Descent (May 18, 2005)
- Episode 4x21: Search and Rescue (May 18, 2005)
- Episode 4x22: Before the Flood (May 25, 2005)
Guest cast, played by Mia Maestro
- Episode 3x20: Blood Ties (Apr 25, 2004)
- Episode 3x21: Legacy (May 2, 2004)
- Episode 3x22: Resurrection (May 23, 2004)
- Episode 5x06: Solo (Nov 10, 2005)
- Episode 5x07: Fait Accompli (Nov 17, 2005)
- Episode 5x13: 30 Seconds (May 3, 2006)
- Episode 5x14: I See Dead People (May 10, 2006)
- Episode 5x16: Reprisal (May 22, 2006)
- Episode 5x17: All the Time in the World (May 22, 2006)