Well, the following images, collected by BoredPanda, speak for themselves.

The resemblances are just mind-blowing…

Matt Damon

Compared to someone’s dad:

https://www.reddit.com/r/OldSchoolCool/comments/53wjyv/my_parents_wedding_day_february_1961_i_think_dad/

Jonny Depp

Compared to someone’s grandfather:

http://imgur.com/gallery/cmrDNTu/comment/628275631

Andy Samberg and Daniel Radcliffe in the 70s

Look for yourself:

https://www.reddit.com/r/pics/comments/1qo2ta/what_andy_samberg_and_daniel_radcliffe_wouldve/

Eddie Murphy

Compared to Eddie Murphy’s great-grandfather:

http://mattstopera.tumblr.com/post/11022194222/everyone-is-forgetting-that-eddie-murphy-is-a-time

Natalie Portman

Compared to a 13 year old girl on Reddit:

https://www.reddit.com/r/pics/comments/4b3sdz/this_is_my_friend_at_age_13_he_looked_exactly/

Steve Martin

Compared to a lady from the Victorian era:

https://www.reddit.com/r/funny/comments/1nweli/my_friends_boyfriend_had_a_great_great/

Jay Z

Compared to a man in Harlem in 1939:

http://schomburgcenter.tumblr.com/post/49864401842/does-the-man-on-the-right-remind-you-of-someone

Harry Potter

Compared to a great aunt:

https://www.reddit.com/r/funny/comments/5tzur2/turns_out_my_great_aunt_was_harry_potter/

Michael Jackson

Compared to an Egyptian bust.