13 Actors You Probably Didn’t Know Were On "Family Ties"

An adorable 7-year-old Joseph Gordon-Levitt got one his very first roles on this classic ‘80s sitcom.

1. Joseph Gordon-Levitt

When did he first appear: "Sign of the Times"

Who did he play: Dougie, a kindergarten friend of Andrew.

Where you recognize him from (obviously): 3rd Rock from the Sun, (500) Days of Summer, Inception, and 10 Things I Hate About You.

2. River Phoenix

When did he first appear: "My Tutor"

Who did he play: Eugene Forbes, a 14-year-old math genius who develops a crush on Jennifer after coming to tutor Alex.

Where you remember him from: Stand by Me, Indiana Jones and the Last Crusade, and My Own Private Idaho.

3. Christina Applegate

When did she first appear: "Band on the Run"

Who did she play: Kitten, a member of Jennifer's band.

Where you recognize her from (obviously): Don't Tell Mom the Babysitter's Dead, Anchorman, The Sweetest Thing, and Married... with Children.

4. David Faustino

When did he first appear: "To Snatch a Keith"

Who did he play: Keith Bailey, the son of a divorced family friend who was taken away from his mother by his father.

Where you recognize him from: Married... with Children

5. Wil Wheaton

When did he first appear: “'D' Is for Date”

Who did he play: Timothy Higgins, a boy Jennifer's develops a crush on.

Where you recognize him from: The Big Bang Theory, Stand by Me, and Star Trek: The Next Generation.

6. Crispin Glover

When did he first appear: "Birthday Boy"

Who did he play: Doug, one of Alex's friends.

Where you recognize him from: Back to the Future

7. Geena Davis

When did she first appear: "Help Wanted”

Who did she play: Inept housekeeper Karen.

Where you recognize her from: Beetlejuice, Thelma & Louise, and A League of Their Own.

8. Julia Louis-Dreyfus

When did she first appear: “Read It and Weep”

Who did she play: Susan "Raindrop" White, a lawyer.

Where you recognize her from (obviously): Veep, Seinfeld, Dinosaurs, North, and A Bug's Life.

9. Judith Light

When did she first appear: “Not an Affair to Remember”

Who did she play: Stacey Hughes, Steven's co-worker who unsuccessfully attempted to seduce him.

Where you recognize her from: Who's the Boss?, Ugly Betty, and Dallas.

10. Courteney Cox

When did she first appear: “The Last of the Red Hot Psychologists: Part 1”

Who did she play: Lauren Miller, Alex's girlfriend for the last two seasons of the series.

Where you recognize her from: Cougar Town, and, of course, Friends.

11. Corey Feldman

When did he first appear: “The Last of the Red Hot Psychologists: Part 1 “

Who did he play: Walter, a classmate of Jennifer, who was a nominee to win the a student achievement award.

Where you recognize him from: The Goonies, Stand by Me, and The Lost Boys.

12. Jeff Cohen

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When did he appear: “The Visit” (his second appearance on the show)

Who did he play: Marv Jr., Elyse’s obnoxious nephew.

Where you recognize him from: The Goonies!

13. Tom Hanks

When did he first appear: “The Fugitive: Part 1"

Who did he play: Ned Donnelly, Elyse's alcoholic younger brother.

Where you recognize him from: Bosom Buddies.