Perhaps...Jorak Uln, The Sith Master on Manaan, Darth Bandon, The Sith Master on Lehon, The lead Sith Master on the Star Forge (Dark side ending), the lead Dark Jedi in the three Dark Jedi ambushes on Tatooine and Kashyyyk. But some of them probably shouldn't actually drop their Cross Guards upon their death - just have them wield the cross-guard sabers during their battles with you.