I’m not sure I like the casting choices of Battlestar Galactica.
Here’s how I would’ve done it:
Starbuck should be played by Grace Park (Boomer)
Boomer should be played by Aaron Douglas (Tyrol)
Chief Tyrol should be played by Katee Sackhoff (Starbuck)
Baltar and Tigh should switch with each other.
I think Richard Hatch should play the President.
Battlestar Futurama
Apollo; Fry
Starbuck; Leela
Boomer; Amy Wong
Chief; Hermes
Baltar; Professor Farnsworth
Tigh; Zoidberg
Adama; Morbo (Daggits give Adama gas…)
President; Mom
the Toasters (Mechanicals); Bending Units
the Toasters (Meatbags); Blank Robots (Mac Formatted) downloaded with celebrity personas
Battlestar Farscape
Helo; John Crichton (Talyn-John)
Starbuck; Chiana
Apollo;John Crichton (Moya-John)
Boomer; Aeryn Sun (Bioloid model)
Chief; Ka’ D’Argo
Baltar; Rygel XVI, or maybe Stark
Number Six; Harvey (Neural Clone)
Tigh;Pilot
Adama;Moya
President; Bialar Crais
the Toasters (Mechanicals); Scarran “Horsefaces”
the Toasters (Meatbags); Ruling Caste Scarrans
Battlestar Evergreen Terrace
Apollo; Bart Simpson
Starbuck; Lisa Simpson
Boomer; Milhouse Van Houten
Chief; Moe Syzlak
Baltar; Prof. Frink
Tigh; Weyland Smithers
Adama; Montgomery Burns
President; Kang 
the Toasters (Mechanicals); Berserk Itchy and Scratchy Land robots
the Toasters (Meatbags); Lenny and Carl, Barney Gumbel
Battlestar Spooner Street
Apollo; Stewie Griffin
Starbuck; Meg Griffin
Boomer; Joe Swanson
Chief; Brian
Baltar; Mayor Adam We
Tigh; Peter Griffin
Adama; Joe Swanson
President; Lois Griffin
the Toasters (Mechanicals); Grunka-Lunkas
the Toasters (Meatbags); The Evil Monkey