This post should be upvoted, as I think writers are way more important for a show to be good than any famous and awarded actor.

The writers I consider the best are:
- Jonathan Nolan (Person of Interest, Westworld);
- Joss Whedon (Buffy, Angel, Firefly, Marvel's Agents of S.H.I.E.L.D.);
- Michael Schur (Brooklyn Nine-Nine, Parks and Recreation, The Office (US), The Good Place);
- Damon Lindelof (Lost, The Leftovers, Watchmen);
- David Lynch (Twin Peaks);
- Ronald D. Moore (Battlestar Galactica (2004), For All Mankind, Roswell, Star Trek: DS9);
- Vince Gilligan (Better Call Saul, Breaking Bad, The X-Files);
- David Simon (The Wire, Treme, The Deuce, We Own This City);
- Bryan Fuller (Heroes, Hannibal, Pushing Daisies);
- Russel T. Davies (Doctor Who, Torchwood, It's a Sin);
- Noah Hawley (Fargo, Legion);
- Phoebe Waller-Bridge (Fleabag, Killing Eve);
- Steven Moffat (Doctor Who, Sherlock).

Sorry for the long list.