As speculated, Thala has dyed his hair for the second look of Thala55. He will be playing the role of a girl's father and Trisha's husband.
Ajith has dyed his hair after a 2 year gap. He was last seen with black hair in Billa2 that released in 2012.
For the portions with Anushka, who plays another lead lady in the film, the star will be appearing with his natural grey hair style.