The power of christ compels me to tell you it's been 41 years since William Friedkin's revolutionary horror flick shocked, appalled, and (in some cases) caused audience members to literally wretch their guts out.
Personally, I find it hard to take the dated special effects seriously nowadays, but there's no denying what an outstanding piece of filmmaking The Exorcist was, and still is.
As you might notice, Jack MacGowran (Burke Dennings) and Lee J. Cobb (Lieutenant William F. Kinderman) remain absent from this list, having sadly passed away around the same time the film was released. For the rest of the cast members, scroll down to see just how far they've come since 1973...
Ellen Burstyn as Chris MacNeil
Age then: 41
Age now: 82
What she's been in since: Requiem for a Dream, Resurrection, Interstellar.
Max von Sydow as Father Lankester Merrin
Age then: 44
Age then: 85
What he's been in since: Flash Gordon, Ghostbusters 2, Minority Report, Extremely Loud and Incredibly Close.
Jason Miller as Father Damien Karras
Age then: 31
Age now: Died May 13, 2001
What he's been in since: Toy Soldiers, The Exorcist III, Trance.
Linda Blair as Regan Teresa MacNeil
Age then: 15
Age now: 56
What she's been in since: Exorcist II: The Heretic, Roller Boogie, Night Patrol.
Kitty Winn as Sharon Spencer
Age then: 30
Age now: 71
What she's been in since: Exorcist II: The Heretic, Peeper, Mirrors.
Father William O'Malley as Father Joseph Dyer
Age then: 42
Age now: 83
What he's been in since: Nothing.