You can say the character name and tell something what you like most about him/her. 

I like the role or character played by Esther Yu - Shuxin in Speed And Love. She's a very brave, cheerful, beautiful and independent girl at her age when she went to her father and ChaoChao 's new home. She also continues her studies.

‎‏‎ ..If the drama is based on the novel, because Jin Chao's character development was more believable and difficult for me, I would choose her as my favorite character. I feel more kinship with her because I am also an older sister, so I understand the responsibility of being an older child more.....

I also like San Lai's character who was a loyal friend to Jin Chao and Jiang Mu. He's always there for them and treat them kindly.