[Lachwen]

I don't think any of the Elves were ever truly "evil." Some were misled, corrupted, arrogant or driven to madness, but evil? No. Malicious? Occasionally. Fëanor abandoning the rest of the Noldor and burning the Telerin ships at Losgar was certainly malicious, as was Eöl's attempt to slay Maeglin (well, that might be considered more selfish than malicious...) and Celegorm and Curufin's plan to usurp the throne of Nargothrond. Maeglin's actions, too, were malicious, even before Morgoth offered him Idril for Gondolin (remember how he always spoke against the councils of Tuor?).

So the short answer is: No, I don't think any of them were evil, but they could be malicious.