Mulder:
Broken Home by XScout
Carnival Dark, Carnival Light by Windsinger
Even In His Youth by Brian Olsen
How To Catch An Alien by RaEnright
How To Catch An Alien II: Reticulans and The Lady Brigade by RaEnright
The Kid by XScout
Preconception by Laura B

Scully:
Chance Encounters I: The Summer of 1980 by Susan Hamm
Safe as Houses by Neoxphile
A Simple Twist of Fate? by x-girl1
Tyger Tyger by Aeslehc Nametab

Mulder and Scully:
Friend Of The Family by Requiem
Friends Even in Childhood by Penny Daza
In Love and Baseball by Cathey Scully
Interludes in Roller Blading by Cathey Scully
Mulder's Creek: Season one by Neoxphile
Mulder's Creek: Season two by Neoxphile
Through the Eyes of a Child by Kerri Sismilich

Samantha
Diablita II by Mariann

Reyes:
1984 by Kathmak
Mulder's Creek seasons 1 & 2

Doggett:
Mulder's Creek seasons 1 & 2

Skinner:
Because Of You by Tisha Cox
Father and Son by Kelly Broughton
Mulder's Creek seasons 1 & 2

Krycek
Mulder's Creek seasons 1 & 2
The Rat's Passage by Cancergirl

Teenagers involved in cases (not characters' children)

Teenage offspring of characters