I was thinking of doing some Siglerpedia editing (if I can figure out how to register...) and adding in jersey numbers.  We don't know all that many of them, though.

Krakens

#8 - Don Pine
#10 - Quentin Barnes (oh dear, QB is the QB.  Never noticed that until now...), #47 in one game as tailback
#13 - Halawa
#14 - Yitzhak Goldman (#7 in the first season?)
#21 - Dan Campbell (removed from league due to mods)
#26 - Yassoud Murphy
#31 - Wahiawa, Paul Pierson (retired)
#38 - Rebecca "The Wrecka" Montagne
#47 - Mitchell "The Machine" Fayed (R.I.P.)
#48 - Ju Tweedy, Pancho Saulsgiver (retired)
#50 - John Tweedy (THE PERCENT CHANCE THAT YOU'LL LIVE) (Thanks, John.)
#58 - Virak the Mean
#66 - Wen-Eh-Daret (retired)
#80 - Harwick
#82 - Milford
#91 - Aleksander Michnik
#93 - Mum-O-Killowe

Grontak Hydras

#23 - Wichita
#52 - Bilis the Destroyer

Isis Ice Storm

#23 - North Branch
#76 - Ryan Nossek

Jupiter Jacks

#81 - Denver (assuming she kept her number with the Jacks)
#84 - Scarborough (ditto)

Wabash Wolfpack

#90 - Stephen Wardop

Did I miss any?