Beh. James Potter is boring. I would much rather write any of:

55. Captain Jack Sparrow/Detective Munch (Law and Order SVU)
66. Pollution (Good Omens)/Quark (ST:DS9)
89. Granny Weatherwax/King Kelson (Derinyi Chronicles)
103. Sam Vimes (Discworld)/Hamlet
176. Baron Harkonnen (Dune)/Captain Jack Sparrow
186. Baldrick (Blackadder)/Arnold Rimmer (Red Dwarf)
337. Detritus (Discworld)/Braca (Farscape)
309. Aziraphale (Good Omens)/Seven of Nine (Voyager)
363. Arwen (LotR)/Atreyu (Neverending Story)



or, god help me,
140. Alexander Dane (Galaxy Quest)/Joan (... of Arcadia)
399. Faramir (LotR)/Mojo Jojo (Powerpuff Girls)


or, especially,
222. Spider Jerusalem (Transmetropolitan)/Donnie Darko

and sadly, this could be so beautiful:
263. Jar Jar Binks/Arthur Dent (Hitchhiker's Guide)

and in the "I would write this except I ship Snape/things that don't creep me out" department:
352. Severus Snape (HP)/Zorg (Fifth Element)