Both Kirk and Michael Douglas had outstanding acting careers and are considered two of Hollywood’s greatest. When Kirk was 30, he landed his first role in the film, “The Strange Love of Martha Ivers,” the part that kickstarted his career into what it is today.
When his son, Michael, was the same age, he was busy starring in the show, “The Streets of San Fransisco.” Though the two actors were popular in different generations, it’s safe to say that they’re on the same level of greatness in Tinseltown.
Rance Howard (22) and Ron Howard (22)
Ron Howard made a name for himself in Hollywood by acting in "Happy Days." These days, directing has become more of his forte. His father was in the business as well.
Rance Howard was an actor and appeared in over 100 films throughout his career, from the mid-50s up until he died in 2017. Both father and son had successful careers by the age of 22.
Ryan Phillippe (16) & Deacon Phillippe (16)
Excuse us while we gawk at Ryan Phillippe and his son, Deacon. We don't think we've ever seen a father and son look that look so much alike in the history of father and son look-a-likes. Ryan got his start in the industry on "One Life to Live" when he was a teenager.
He married his "Cruel Intentions" costar, Reese Witherspoon, and the couple had two kids before splitting up. Though he has the face for it, it's unclear if their son, Deacon, will follow in his parents' acting footsteps.
Donald Sutherland (52) & Kiefer Sutherland (52)
Donald Sutherland rose to fame with roles in shows like "Dirty Dozen" and "M.A.S.H" and really hit it big in the film industry for his roles in "Ordinary People" and "1900."
His son (who happens to be a twin) Kiefer rose to fame in the '80s when he took part in the film "The Lost Boys." Keifer won an Emmy, Golden Globes, and two Screen Actors Guild Awards for his starring role as Jack Bauer in the Fox drama series, "24."
Dennis Quaid (27) & Jack Quaid (27)
Once upon a time, Dennis Quaid and Meg Ryan were married, and though their marriage failed, one good thing did come of it; their son, Jack. Though papa Quaid's more substantial roles happened later in life, by 27, he had a pretty impressive résumé.
Jack decided to venture into acting as well, and has appeared in films like "The Hunger Games" and was most recently a star in the critically acclaimed show "The Boys."