If you mean previous Romanian representatives in ESC, then 2: Cezar (2013), Ciro de Luca (2007).
And how many previous participants of the NS alone?
Some that I know since 2007, the year when I started to watch our selection:
1. Aldo Blaga - 2019 (
Your journey)
2. Alexa - 2009 (
A girl like me,
One last night), 2010 (
Baby), 2015 (
Chica latina)
3. ARIS - 2012 as part of the duo T&L (
Twilight); 2015 under the name Lara Lee (
Superman)
4. Ayona - 2017 auditions, didn't proceed to the NF (
Dream on); 2018 (
Watch me fly,
The story goes on, where only the latter qualified for the NF from auditions)
5. Cream (part of the trio Cream x Minodora x Diana Bucșă) - 2011 under her real name Claudia Pavel (
I want u to want me)
6. Dan Helciug - 2007 as part of the band Spitalul de Urgență (
Stay united); 2011 (
My Facebook girl)
7. Dora Gaitanovici - 2017 auditions, as part of the duo Dora & Johnny, didn't proceed to the NF (
Give me a sign); 2018 (
Fără tine)
8. Forțele de Muncă - the vocalist was in 2019 NF with the band Steam (
The way it goes)
9. JESSIE - 2018 (
Lightning strikes)
10. MØISE - 2017 auditions, as part of the duo Dora & Johnny, didn't proceed to the NF (
Give me a sign); 2018 as Johnny Bădulescu (
Devoted); 2019 (
Give up now)
11. Letiția Moisescu - 2011, 2013 under the name Leticia (
Dreaming of you,
We are one); 2014, didn't proceed to the NF (
Spune-mi); 2019 (
Daina)
12. Miryam - 2017 auditions, didn't proceed to the NF (
Escape); backing vocalist for Ovidiu Anton -
Moment of silence (ESC 2016 Romania)
13. Othello - 2018 (
Noi suntem pădure)
14. PETRA - 2020
Moldovan NF, as part of the duo Petronela Donciu & Andreea Portărescu (
We will be legends)
15. Romeo Zaharia - 2009 (
Someone like you), 2014 auditions, didn't proceed to the NF (
Transpus în cuvinte), 2016 auditions, didn't proceed to the NF (
Cherish), 2018 (
Maybe this time)
16. Vizi Imre - 2014 (
Kind of girl)
From those who didn't pass the jury auditions in 2022, returning artists (and some trolls) were:
1. Ana-Maria Hanganu - 2017 under the name Ana-Maria Mirică (
Spune-mi tu)
2. Dorel Giurgiu - 2017 and 2018 auditions (
Be strong,
Seek the peace), never passed to the NF and never will
3. Endless - 2018 as part of the duo Endless feat. Maria Grosu (
Thinking about you)
4. Gabriela Garlonta - 2018 auditions, didn't proceed to the NF (
Dor de Lisabona)
5. Miss Lu - 2014 auditions under the name Alyanna Lu, didn't proceed to the NF (
Get up!)
5. Pragu' de Sus - 2018 (
Te voi chema)
6. SAVE - 2018 (
All we need)
7. Waleska - 2018 (
Reborn)
8. ZØLTAN - 2018 (
Dacă dragostea e oarbă)