Matt Ryan was 36 in Constantine: City of Demons - The Movie when he played the character 'John Constantine / Constantine-Demons (voice)'.
That was over 6 years ago in 2018.
Today he is 43, and has starred in 16 movies in total, 3 of those since Constantine: City of Demons - The Movie was released.
In Constantine: City of Demons - The Movie, I think Matt Ryan looks: