ALF is a TV series that aired on NBC from September 22, 1986, to March 24, 1990 for four seasons.

Guest Characters

Characters	From	Date	Episode	Crossover Type
Gilligan, Skipper Jonas Grumby, Professor Roy Hinkley, Mary Ann Summers	Gilligan’s Island	September 28, 1987	S02E02: “Somewhere Over the Rerun”	B

Outgoing Crossovers

Characters	Guest On	Date	Episode	Crossover Type
ALF	Matlock	December 1, 1987	S02E08: “The Network”	B*
ALF	Blossom	February 25, 1991	S01E08: “The Geek”	B
ALF	Love Boat: The Next Wave	April 30, 1999	S02E16: “Trance of a Lifetime”	B
ALF	Mr. Robot	August 10, 2016	S02E06: “eps2.4_m4ster-s1ave.aes”	B
ALF	Young Sheldon	January 3, 2019	S02E11: “A Race of Superhumans and a Letter to Alf”	B*

(Note: In ALF’s appearances on Matlock and Young Sheldon, there is an argument that ALF is being treated as if he is an actual alien actor who plays the fictional ALF. To different degrees, both also could arguably be described as a celebrity cameo of puppeteer Paul Fusco playing ALF.

The other ALF appearances in Blossom, Love Boat: The Next Wave, and Mr. Robot are more standard B-type crossovers that are dreams and hallucinations.

ALF has also appeared on several talk shows and game shows over the years.)

Specials & TV Movies

Name	Date
“Alf Loves a Mystery”	1987
“Who Shrunk Saturday Morning?”	September 1989
Project: ALF	February 17, 1996

(Note: Project ALF was the follow up to the TV series finale where ALF was captured by the government.)

Spinoffs & Outgoing Cast

Characters	New Show	Date	Episode
ALF	ALF's Hit Talk Show	July 7, 2004	S01E01: “Drew Carey/Dennis Franz”

(Note: Much like the Matlock and Young Sheldon appearances, ALF's Hit Talk Show treats the puppet ALF like a sentient being/actor who starred in the show ALF and is not in continuity with the series.)

Cartoon Crossovers & Follow Ups

ALF: The Animated Series (also known as ALF on Melmac) was a prequel show detailing the adventures of ALF and his friends and family on the Planet Melmac who were occasionally shown on the original show.

ALF Tales which featured characters from ALF: TAS in parodies of fairy tales.

ALF was in in the anti-drug TV special Cartoon All-Stars to the Rescue with characters from a variety of movies and TV shows.

ALF (again being treated as an “actor”) appeared on an episode of the the Fox cartoon Duncanville.