These are all the character combinations ("relationships") that are eligible this round. You can request or offer them in your sign-up.

Remember that for matching purposes it is required that you request and offer at least one "relationship" consisting only of New Who or Torchwood characters. (That means you need to pick at least one relationship from the first two sections of this list.

New Who
Adelaide Brooke/Wilfred Mott
Algy (DW 2005)/Jack Harkness
Amy Pond/Sarah Jane Smith
Amy Pond/Rose Tyler
Amy Pond/Rory Williams
Clara Oswin Oswald/Amy Pond
Clara Oswin Oswald/Danny Pink
Clara Oswin Oswald/River Song
Clara Oswin Oswald/Rose Tyler
Colonel Mace/Captain Marion Price
Donna Noble/Clara Oswin Oswald
Donna Noble/River Song
Donna Noble/Rose Tyler
Eleventh Doctor (Ganger)/Jack Harkness
Eleventh Doctor/Amy Pond
Eleventh Doctor/Clara Oswin Oswald
Eleventh Doctor/Donna Noble
Eleventh Doctor/Jack Harkness
Eleventh Doctor/Jack Harkness/The Doctor's TARDIS
Eleventh Doctor/River Song
Eleventh Doctor/Rory Williams
Eleventh Doctor/Rose Tyler
Eleventh Doctor/Tenth Doctor
Eleventh Doctor/The Master (Simm)
Jack Harkness/Jenny (Doctor Who: The Doctor's Daughter)
Jack Harkness/Martha Jones
Jack Harkness/Missy
Jack Harkness/Reinette
Jack Harkness/River Song
Jack Harkness/The Doctor's TARDIS
Jackie Tyler/Pete Tyler
Jenny Flint/Madame Vastra
Jenny (Doctor Who: The Doctor's Daughter)/Martha Jones
Jenny (Doctor Who: The Doctor's Daughter)/The Master (Simm)
Martha Jones/Donna Noble/Clara Oswin Oswald/Amy Pond/Rose Tyler
Martha Jones/Rose Tyler
Martha Jones/Mickey Smith
Martha Jones/River Song
Mickey Smith/Rose Tyler
Missy/River Song
Missy/Clara Oswin Oswald
Ninth Doctor/Jack Harkness
Ninth Doctor/Rose Tyler
Ninth Doctor/Martha Jones
Rita Afzal/Eleventh Doctor
River Song/Madame Vastra
River Song/Mels Zucker
Sarah Jane Smith/Rose Tyler
Tenth Doctor/Amy Pond
Tenth Doctor (duplicate)/Rose Tyler
Tenth Doctor/Donna Noble
Tenth Doctor/Jack Harkness
Tenth Doctor/Missy
Tenth Doctor/Reinette
Tenth Doctor/River Song
Tenth Doctor/Rose Tyler
Tenth Doctor/The Master (Simm)
Tenth Doctor/Wilfred Mott
Twelfth Doctor/Clara Oswin Oswald
Twelfth Doctor/Clara Oswin Oswald/River Song
Twelfth Doctor/Donna Noble/Clara Oswald
Twelfth Doctor/Jack Harkness
Twelfth Doctor/Martha Jones
Twelfth Doctor/Missy
Twelfth Doctor/River Song
Twelfth Doctor/Rose Tyler
Twelfth Doctor/Jack Harkness/Missy
Twelfth Doctor/Osgood
The War Doctor/Bad Wolf
The War Doctor/The Master (Simm)

Torchwood
Alice Carter/Agent Johnson
Alice Carter/Jack Harkness
Gwen Cooper/Jack Harkness/Ianto Jones
Gwen Cooper/Martha Jones
Gwen Cooper/Owen Harper
Gwen Cooper/Rhys Williams
Gwen Cooper/Suzie Costello
Gwen Cooper/Toshiko Sato
Mary (Torchwood: Greek's Bearing Gifts)/Toshiko Sato
Ianto Jones/Toshiko Sato
Jack Harkness/Ianto Jones/Toshiko Sato
Jack Harkness/Original Jack Harkness
Owen Harper/Ianto Jones
Owen Harper/Toshiko Sato
Suzie Costello/Jack Harkness
Suzie Costello/Owen Harper
Suzie Costello/Toshiko Sato
Tommy Brockless/Toshiko Sato
Jack Harkness/Ianto Jones

Classic Who
Adric (Doctor Who)/Nyssa of Traken
Alistair Gordon Lethbridge-Stewart/Liz Shaw
Ben Jackson/Jamie McCrimmon
Ben Jackson/Polly Wright
Eighth Doctor/Grace Holloway
Eighth Doctor/The Master (Roberts)
Fifth Doctor/Nyssa of Traken
Fifth Doctor/Tegan Jovanka
Fifth Doctor/Tegan Jovanka/Nyssa of Traken
Fifth Doctor/The Master (Ainley)
Fifth Doctor/Vislor Turlough
First Doctor/Susan Foreman
First Doctor/The Doctor's TARDIS
Fourth Doctor/Harry Sullivan
Fourth Doctor/Romana I
Fourth Doctor/Romana II
Fourth Doctor/Sarah Jane Smith
Ian Chesterton/Barbara Wright
Jo Grant/The Master (Delgado)
John Benton/Mike Yates
Leela/Romana II
Karra (Doctor Who)/Ace McShane
The Master (Ainley)/Sarah Jane Smith
The Master (Ainley)/Nyssa of Traken
The Master (Delgado)/Liz Shaw
Melanie Bush/Ace McShane
Romana I/Romana II
Peri Brown/Sixth Doctor
Peri Brown/The Master (Ainley)
Sarah Jane Smith/Harry Sullivan
Second Doctor/Jamie McCrimmon
Seventh Doctor/Thomas "Hex" Schofield
Seventh Doctor/Ace McShane
Susan Foreman/Ping-Cho
Tegan Jovanka/Nyssa of Traken
Third Doctor/Jo Grant
Third Doctor/Liz Shaw
Zoe Heriot/Jamie McCrimmon

Mixed Relationships, Big Finish and others
Anji Kapoor/Fitz Kreiner
Clara Oswin Oswald/Vislor Turlough
Destrii (Doctor Who)/Izzy Sinclair
Dodo Chaplet/Steven Taylor
Eighth Doctor/Lucie Miller
Eighth Doctor/Romana II/Twelfth Doctor
Eleventh Doctor/Tenth Doctor/Twelfth Doctor/First Doctor
Fifth Doctor/Jack Harkness
Fifth Doctor/Tenth Doctor/Jack Harkness
First Doctor/Missy
Fitz Kreiner/Trix Macmillan
Ian Chesterton/Barbara Wright/Ninth Doctor
Izzy Sinclair/Fey Truscott-Sade
Jack Harkness/John Hart/Clara Oswin Oswald
Jack Harkness/John Hart/River Song
John Hart/River Song
Ninth Doctor/Fitz Kreiner
Peri Brown/Erimem
Romana II/Clara Oswald
Romana II/Clara Oswald/Martha Jones
Romana II/Donna Noble
Romana II/River Song
Sarah Jane Smith/Bernice Summerfield
Twelfth Doctor/Ace McShane
Twelfth Doctor/Lucie Miller
Twelfth Doctor/Susan Foreman
Ace McShane/Bernice Summerfield
Ace McShane/Shou Yuing
Anji Kapoor/Trix MacMillan
Eighth Doctor/Fitz Kreiner
Eighth Doctor/Jack Harkness
Eighth Doctor/Vislor Turlough
Fifth Doctor/The Master (Simm)
Ian Chesterton/Clara Oswin Oswald
Ian Chesterton/Martha Jones/Barbara Wright
The Master (Delgado)/River Song
Raine Creevy/Ace McShane
River Song/Bernice Summerfield
Tenth Doctor/Owen Harper
Seventh Doctor/Bernice Summerfield
The War Doctor/Fitz Kreiner

This is an exciting list of possibilities and we're looking forward to a lot of fic for the various parts of the Whoniverse!