(Note: This is exclusively for the television series characters, since I am not up to date with the comic book series.)

Current

• Michonne Grimes
• Glenn Rhee
• Maggie Rhee
• Tyreese Williams
• Carol Peletier

Ships

• Michonne x Rick
• Glenn x Maggie
• Carol x Tyreese
• Carol x Ezekiel
• Glenn x Rick
• Bob x Sasha
• Maggie x Sasha
• Rosita x Sasha
• Abraham x Rosita x Sasha
• Daryl x Jesus

Former

• Daryl Dixon
• Carol Peletier
• Michonne
• Hershel Greene
• Merle Dixon
• Glenn Rhee
• Carl Grimes
• Maggie Greene
• Rick Grimes
• T-Dog
• Dale Horvath

[edited 3/10/17: top 11 to top 5, ships added]