Future Freeza

Future Frieza is the counterpart of Frieza from Trunks' timeline. Future Frieza was killed by Goku when he and his father came to Earth, but they were later revived.

Biography
Most of Frieza's life was the same as his counterparts, up until he arrived on Earth as Mecha Frieza, after arriving on Earth he was met by Goku, who had arrived via Instant Transmission. Mecha Frieza fought Goku but was eventually defeated and killed.

Shin Budokai - Another Road
Future Frieza is resurrected by Future Babiddi and given a large power increase to be on par with a Super Saiyan 2. Due to being revived, he becomes loyal to Babiddi and, along with Future Cell and Future Dabura, becomes one of his main minions. During the final battle he fights the heroes along with his allies but is eventually defeated.