Suggestions by @kamsismith

Jean Reno

as 1990s in What Actors Could've Played Jef Costello in Various Decades?

Harrison Ford

as 1980s in What Actors Could've Played Jef Costello in Various Decades?

Robert De Niro

as 1970s in What Actors Could've Played Jef Costello in Various Decades?

Marlon Brando

as 1950s in What Actors Could've Played Jef Costello in Various Decades?

Humphrey Bogart

as 1940s in What Actors Could've Played Jef Costello in Various Decades?

James Cagney

as 1930s in What Actors Could've Played Jef Costello in Various Decades?

Cary Grant

as 1920s in What Actors Could've Played Jef Costello in Various Decades?

Humphrey Bogart

as 1910s in What Actors Could've Played Jef Costello in Various Decades?

Rudolph Valentino

as 1900s in What Actors Could've Played Jef Costello in Various Decades?

Zac Efron

as 2020s in What Actors Could've Played The Fonz in Various Decades?

Chris Pratt

as 2010s in What Actors Could've Played The Fonz in Various Decades?

Johnny Depp

as 2000s in What Actors Could've Played The Fonz in Various Decades?

John Travolta

as 1990s in What Actors Could've Played The Fonz in Various Decades?

Tom Cruise

as 1980s in What Actors Could've Played The Fonz in Various Decades?

Paul Newman

as 1960s in What Actors Could've Played The Fonz in Various Decades?

Marlon Brando

as 1950s in What Actors Could've Played The Fonz in Various Decades?

Humphrey Bogart

as 1940s in What Actors Could've Played The Fonz in Various Decades?

James Cagney

as 1930s in What Actors Could've Played The Fonz in Various Decades?

Douglas Fairbanks

as 1920s in What Actors Could've Played The Fonz in Various Decades?

Rudolph Valentino

as 1910s in What Actors Could've Played The Fonz in Various Decades?