Tigatron joined the Beast Wars in the episode Fallen Comrades near the beginning of season 1.

A gentle character at heart, he loved his surroundings and was captivated by Nature's beauty.  He'd spend most of his time outside of the base roaming the strange planet and taking in the sights, sounds and smells.  He was a pacifist of sorts, but he was a formidable warrior when the need came to fight or stand his ground.

 

He befriended another white tiger who he named Snowstalker.  He was devastated when, thanks to another attack from the Predacons, there was an accident and Snowstalker died as a result from the crossfire (it started an avalanche).  Enraged that their fighting was destroying the world around them, Tigatron left the fight for a while but came back to save his comrades who were out-numbered by Predacons.

 

Airazor was another friend of his, but it soon became evident that the two really cared about each other.  It was saddening to see them abducted by the aliens and for a long time we didn't see Tigatron in the show.  However, he came back, merged with Airazor, as Tigerhawk and died in the struggle to stop Megatron from conquering the Maximals.

 

A brave and noble warrior, Tigatron will always be remembered for his strength, courage and love of peace.