Other works

(1999) TV commercial for Marsh Supermarkets, "The Force is Still With Me". .

Created "Black Pearl" from Dark Horse Comics

(1993) He provided the voice for Detective Mosley in the CD-ROM game Gabriel Knight: Sins of the Fathers (1993) and played the part of Blair in Wing Commander III: Heart of the Tiger (1994) and Wing Commander IV: The Price of Freedom (1995).

(1985) From Star Wars to Jedi: The Making of a Saga (1985) (V) as himself/narrator; Star Wars Trilogy "making of" featurette.

(1995) Voice over on the CD Game Full Throttle (1995) (designed by 'LucasArts Entertainment Company).

(1999) TV Commercial for "Star Wars: The New Jedi Order: Vector Prime" novel.

(Early 1980s) Reprised the role of Luke Skywalker for a series of National Public Radio adaptations of Star Wars: Episode IV - A New Hope (1977) and Star Wars: Episode V - The Empire Strikes Back (1980).

Appears as the voice over announcer for Cartoon Network's "Video Entertainment System" on Saturday nights

(1979) Stage Play: The Elephant Man (replacement for Philip Anglim) portraying John Merrick.

(1980) Stage Play: Amadeus (replacement for Tim Curry portraying Wolfgang Amadeus Mozart)

(1985) Stage Play: Harrigan 'n Hart. Musical. Book by Michael Stewart. Music by Max Showalter. Lyrics by Peter Walker. Featuring songs of the period by Edward Harrigan and David Braham. Musical Director: Peter Howard. Based on material compiled by Nedda Harrigan (Logan). [final Broadway credit]. Based on "The Merry Partners" by E.J. Kahn Jr. Music orchestrated by John McKinney. Music arranged by John McKinney. Dance arrangements by John McKinney. Vocal arrangements by John McKinney. Choreographed by D.J. Giagni. Scenic Design by David Mitchell. Directed by Joe Layton. Longacre Theatre: 31 Jan 1985- 3 Feb 1985 (4 performances + 25 previews that began on 10 Jan 1985). Cast: Christine Ebersole (as "Gerta Granville"), Harry Groener (as "Edward Harrigan"), Mark Hamill (as "Tony Hart"), Armelia McQueen (as "Mrs. Annie Yeamons"), Tudi Roche (as "Annie Braham Harrigan"), Kenston Ames (as "Chester Fox/Photographer/Newsboy/Newspaperman"), Cleve Asbury (as "Old Colonel/Billy Gross/Nat Goodwin"), Clent Bowers (as "Archie White/Sam Nichols/Felix Barker/Uncle Albert"), Mark Fotopoulos (as "Stetson/Andrew LeCouvrier/Judge/Johnny Wild/Captain/William Gill"), Roxie Lucas (as "Eleanor/Ada Lewis"), Merilee Magnuson (as "Lily Fay/Adelaide Harrigan/Nurse"), Amelia Marshall (as "Jennie Yeamons/Newsgirl"), Barbara Moroz (as "The Colonel's Wife/Elsie Fay/Belle"), Christopher Wells (as "Alfred J. Dugan/Harry Mack/Judge Hilton/Doctor"), Oliver Woodall (as "Martin Hanley"). Swings: Michael Gorman (as "Swing") and Alison Mann (as "Swing"). Understudies: Michael Gorman (as "Archie White/Felix Barker/Martin Hanley/Sam Nichols/Uncle Albert"), Roxie Lucas (as "Mrs. Annie Yeamons"), Merilee Magnuson (as "Gerta Granville"), Barbara Moroz (as "Annie Braham Harrigan") and Christopher Wells (as "Edward Harrigan/Tony Hart"). Produced by Elliot Martin, Arnold Bernhard and The Shubert Organization (Gerald Schoenfeld: Chairman. Bernard B. Jacobs: President). Note: One of the most notable flops of the 1985 Broadway season.

(1987) Stage Play: The Nerd.

(2003) Stage Play: Six Dance Lessons in Six Weeks.

(1989) The film Batman (1989) was originally written to introduce Robin. The DVD of Batman features an animated storyboard featuring the Joker's role in the origin of Robin. For this special feature, Hamill voiced the Joker.

(1977) Public Service Announcement TV commercial for The March of Dimes.

(1996) Music video for Nerf Herder: Sorry (1996).

(2008) Narrator of "Power House of The Universe: Stars," a 26-minute private short movie shown at the Space Theatre in Leicester's National Space Centre, England, UK.

(May 24, 1978) Guested on the daytime program Midday with Bill Boggs (1975) also guesting were James Brolin and Kevin Conway.

(2017) dubbing Han Solo voice in the spoof video "The Force Awakens: A Bad Lip Reading" on YouTube.

(1986) Stage play: "Room Service" playing Gordon Miller with Pierre Epstein, Andrew Bloch, Timothy Jerome, Ann McDonough, etc. Directed by Alan Arkin (Roundabout Theatre, Manhattan)

(September 2020) TV commercial, "Showdown," with Patrick Stewart and Mark Hamill for Uber Eats.