Co- Main Protagonists are when 2 characters share the center role, they take the same amount of time, have usually the same goal and share the highest stakes among the cast and share an outer journey.

Examples
Lydia and Lincoln for Phase 4 (The End of An Era and Beginning of A New Era in The Multiverse) as a whole are the 2 characters with the center role. Though they have shared the role a few times with
- Ford Pines in Return of the Weirdmagedon Cult and Team Free Will: Diassembled,
- Sid Chang in Team Free Will: Diassembled and Chang's Guide To The Galaxy,
- Bender, Anti Cosmo and Slade in Countdown and En.Tropized with the former two once more.
- Marcy Wu for Greatest Universal Horror Show of Circus Gothica

Bender has down his fair of sharing the protagonist role himself with
- Boomer Jojo in Multiversal Noir
- Marcy Wu in The Prankster Point Paradox
- Slade, Anti Cosmo and Luan Loud for Countdown, House of Disenchanted Cards, The B plot and Double Life Emerged in Luan's case
- Lincoln and Lydia for En.Tropized with Anti Cosmo also being in the role.
Anne and Luz share the role with Ford in The Unown Threat.
Elisa Papillon (Formerly Lizbeth) and Luan Loud for the final 3rd of Chronicles of Zaragoza
Mr.Wolf, Mr.Snake, Billy Butcher and Hughie Campbell for The Bad Guys and The Boys
Wednesday, Eleven and Peacemaker for War of The Streams
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