Blefty

Blefty can not be found in any Kingpin map but can be found in the SDK ep_shipyards.c:

	if (self->name_index == NAME_BLEFTY)
	{
		if (!(player->episode_flags & EP_SY_GOFIND_BITCH))
		{
			EP_Skidrow_Register_EPFLAG (player, EP_SY_GOFIND_BITCH);
			Voice_Specific (self, player, sy_lefty, 3);
		}
		else if (!(player->episode_flags & EP_SY_FOUND_BITCH))
		{
			// hey your back without lizzy
			Voice_Random (self, player, sy_lefty, 3);
		}
		else if (player->episode_flags & EP_SY_FOUND_BITCH)
		{
			Voice_Random (self, player, &sy_lefty[3], 2);
		}
		return (0);

	}

and

/*QUAKED ai_sy_blefty (.5 .5 1) ?
blefty unlink
*/

void ai_sy_blefty_touch (edict_t *self, edict_t *other, cplane_t *plane, csurface_t *surf)
{
	edict_t	*BLefty;

	if (!(other->client))
		return;

	if (other->episode_flags & EP_SY_FOUND_BITCH)
	{

		BLefty = EP_GetCharacter (NAME_BLEFTY);

		if (BLefty)
			gi.unlinkentity (BLefty);

		self->touch = NULL;
	}

	
}

void SP_sy_blefty ( edict_t *ent )
{
	if (deathmatch->value)
	{
		G_FreeEdict(ent);
		return;
	}

	ent->solid = SOLID_TRIGGER;
	ent->touch = ai_sy_blefty_touch;

	ent->svflags |= SVF_NOCLIENT;

 	gi.setmodel (ent, ent->model);
	gi.linkentity (ent);

}

Was a old name for BigWillie?