The little boy who played Mikey in Look Who's Talking. How old would be today? because I was 4 in 1989 so how old would he be?

There were actually 4 babies that played the role. None have done any acting since than so there is no birthdates I could find for any of them. Most movies take 1-2 years from filming until the release date. With that time frame we can estimate they were born in early 1987 or late 1986, which would put them around 29 years old.