Admiral Motti was an NPC, an Imperial officer onboard the Peace Moon.
A New Generation Edit
Onboard the Peace Moon there was a general staff meeting that included Tarkin, Darth Vader, and Admiral Motti. The staff was a bit worried since the Senate had now come onboard to take charge of their "Goodwill Inspection Tour". Motti complained that the Peace Moon would've been completed a lot sooner if Vader hadn't Force-choked half the workforce to death. Vader began Force-choking Motti, and declared that gave Vader a good idea: from now on Vader'd Force-choke all the workforce half to death. Vader then released Motti.
Admiral Motti was later killed along with everyone else onboard the Peace Moon when Luke blew it up.