Oliver Reed was 61 in Gladiator when he played the character 'Antonius Proximo'.
That was over 24 years ago in 2000.
In 1999 he died aged 61, starring in 113 films in his career, 3 of those after Gladiator was first released. If he were alive today he would be 86.
In Gladiator, I think Oliver Reed looks: