Regular (credited) voice providers

• Len Carlson^[12] - Quicksilver, Loki,^[13] Odin,^[13] Nathan Garrett / Black Knight,^[14] Mad Thinker,^[14] President, Morgan Stark,^[14] Moon Man^[14]
• Bernard Cowan^[12] - Narrator,^[14][13] Steve Rogers / Captain America, Captain Torak, Morgan
• Jack Creley^[12] - Donald Blake / Thor,^[13] Asgardian Sentry
• Max Ferguson^[12] - Bruce Banner / The Hulk^[15][16][13]
• Vita Linder^[12] - Jane Foster,^[13] Scarlet Witch, Sharon Carter, Peggy Carter, Lorelei, Neri,^[13] Celia Rawlings, Lady Dorma
• Don Mason^[12] - Rick Jones,^[13] Clint Barton / Hawkeye
• Claude Rae^[12] - Thaddeus "Thunderbolt" Ross,^[13] Zeus,^[13] Seidring,^[13] Cerberus, J.B. Stardust
• Henry Ramer^[12] - Mandarin,^[14] Major Uberhart, Melter, Doctor Doom, Wolfgang, Vashti, Sando / Colonel Kranz
• John Vernon^[12] - Tony Stark / Iron Man,^[17][14][13] Prince Namor, the Sub-Mariner,^[17] Major Glenn Talbot, Major Corey
• Chris Wiggins^[12] - Hawkeye,^[14] Kraven,^[14] Grey Gargoyle,^[13] Byrrah, Balder,^[13] Professor Shapanka / Jack Frost,^[14] Professor X, Count Nefaria,^[14] Happy Hogan's grandfather^[14]

Semi-regular and guest (uncredited) voice providers

• Carl Banas - Bucky Barnes^{[citation needed]}
• Len Birman - Hercules,^[13] Giant-Man / Goliath^[13]
• Vern Chapman - Edwin Jarvis, Super-Adaptoid
• Henry Comor - Gargantus,^[14] Calvin Zabo / Mister Hyde,^[13] Executioner^[13]
• Rod Coneybeare - Zarrko,^[13] Cobra,^[13] Ringmaster
• Peg Dixon^{[18][better source needed]}
• Gillie Fenwick - Baron Zemo, Radioactive Man, Leader, Batroc the Leaper, Space Phantom, Dr. Cedric Rawlings, Heimdall,^[13] Director,^[13] Sandu,^[13] Premiere Pouldu, Lava King
• Margaret Griffin - Pepper Potts,^[14] Black Widow,^[14] Countess de la Spirosa,^[14] Enchantress^[13]
• Tom Harvey - Harold "Happy" Hogan,^[14] Iceman, Chameleon,^[14] Crusher Creel / Absorbing Man,^[13] Super-Skrull, Anton Vanko / Crimson Dynamo,^[14] Borok,^[14] Edam,^[14] Angel
• Paul Kligman - Red Skull, Warlord Krang, Mole Man,^[14] Metal Master, Power Man
• Douglas Master - Senator Harrington Boyd^[14]
• Ed McNamara - Swordsman, Titanium Man,^[14] Boomerang
• Maxine Miller - Betty Ross,^[13] the Norn Queen
• Mona O'Hearn - Wasp,^[13] Hippolyta
• Billie Mae Richards - Newsboy^[13]
• Alfie Scopp - Captain

For WNAC-TV in Boston, Arthur Pierce portrayed Captain America in live-action segments for the show. Actors portraying other characters, including Dr. Doom, Hulk, and Bucky, also appeared in live-action segments. The segments were scripted by Superman co-creator Jerry Siegel.^[19]

Captain America

The Incredible Hulk

The Invincible Iron Man

The Mighty Thor

Prince Namor the Sub-Mariner

Sources:^[14][13]

United States

In 1985, Prism Entertainment released several segments from the series on VHS as part of their "Marvel Comics Video Library" series. Best Film & Video Corp. continued this range in the Early-1990s under their "Marvel Video!" imprint. Goldstar Video released two compilation releases which contained three videocassettes each: Marvel Superheroes: Triple Pack #1 (UPC #024543004127) and Marvel's Mightiest Heroes: Triple Pack #2.^[20] Fox Video released a version titled Marvel's Mightiest Super Heroes Gift Set (EAN #0024543004134).

In June 2003, a selection of Hulk segments giving his origin story were released as a bonus feature on Buena Vista Home Entertainment's DVD release of the 1996 animated television series The Incredible Hulk.^[21]

In September 2004, Buena Vista Home Entertainment announced that they would release a five-DVD set titled "the 60s Superheroes" on June 28, 2005, which would contain all segments from The Marvel Super Heroes Show, each on their own disc.^[22] By February 2005, however, Buena Vista announced that the release was off the schedule.^[23]

United Kingdom

In May 2004, Maximum Entertainment released two boxsets that each contained one disc for the Captain America, Iron Man, Sub-Mariner and Thor shows, alongside The Avengers: United They Stand. Both box sets made up all the respective segments from the series. The Hulk segments were not included due to Fox Kids Europe previously sub-licensing them to Buena Vista the year prior.^[24] On August 1, 2005, Maximum re-released Iron Man as a two-disc standalone set.^[25] On May 21, 2007, Maximum re-released each of the respective segments on separate two-disc sets, with each episode re-edited into continuous, half-hour segments.^{[26][27][28][29]} The sets, alongside the Iron Man set, were later bundled as part of the "Marvel Superheroes Classic Collection" boxset, released in November 2007.^[30] In April 2008, a five-disc boxset containing the Iron Man segments with the 1994 series titled "Iron Man - Ultimate Collection" was released.^[31] Segments were also included with the standalone Iron Man 1994 DVD releases, which was soon bundled as a boxset titled "Iron Man Collection" on November 24, 2008.^[32]

In April 2008, Liberation Entertainment secured the home media rights to select Marvel shows from Jetix Europe in select European territories, including Hulk.^[33][34] On August 25, 2008, the company released a two-disc set of the Hulk segments, re-edited into 13 20-minute episodes, in the United Kingdom^[35] and Germany.^[36]

After Liberation closed its UK branch at the end of October,^[37] Clear Vision took over home media distribution of the Marvel properties. The company first released the Iron Man segments on April 19, 2010 with the 1994 series as a six-disc boxset titled "Iron Man: The Ultimate Collection" in the United Kingdom^[38] and on May 3, 2010 and May 7, 2010, they re-released the Hulk sets in the United Kingdom^[39] and Germany^[40] respectively. In 2011, the company began releasing stand-alone DVD sets of the segments which edited them similarity to the Maximum releases. In 2012, the company released a four-disc set that contained single volumes of the Captain America, Hulk, The Mighty Thor and Iron Man segments respectively, to coincide with the release of Avengers Assemble.^[41]