Vaughn and Sydney pretended they were a married couple.

The spy family is on their first mission together.

Sydney and Nadia found Irina scared and alone in a cave.

Sydney looked like a disco ball in this flapper costume.

The bond between Sydney, Will, and Francie was so sweet until Francie died.

We enjoyed the loving and complex relationship these two had.

Sydney and Dixon always made such a good team.

Sydney's infamous red wig. She looked so badass in it.

Sydney presents her new son, Jack, to everyone else.

Vaughn and Sydney share their first kiss on ABC's Alias.

The Alias cast photo in Season 4 includes Nadia and others.

Irina and Jack dancing before everything changed.