Thanos was first introduced by Marvel in The Invincible Iron Man #55 in February, 1973. Thanos has a height of 8'3” (2.52 m) in the Marvel Cinematic Universe and 6'7” (2.01 m) in the comics.
1984's The Official Handbook of the Marvel Universe's Book of the Dead And Inactive II list's comic book Thanos as being 6'7, a few inches taller than the 6'2 dictator Doctor Doom but smaller in comparison to the 7' powerhouse The Incredible Hulk.
At 8 feet, 3 inches tall, Thanos was made taller for his MCU appearances than he was portrayed as being in the comics. Digital Design considered having "snap" briefly pop up on screen when Thanos snapped his fingers as a reference to how the snap occurred in the Infinity Gauntlet comic.
While it is never addressed in-universe, MCU director Joe Russo confirmed Thanos was around 1000 years old in 2012's The Avengers when he first appeared in the MCU.
Iron Man. Robert Downey Jr.'s role as Tony Stark began back in 2008 and gave him the nickname, "the godfather of the MCU." Although not that tall in real life, only at 5'8", with armor on the fictional Iron Man, it's a different story. In his armor, Iron Man is much taller, coming in at 6'5".
Height comaprison of MCU Characters with Thanos || MCU
How tall is Groot?
At full height, he can reach 23 feet tall and weigh 8,000 pounds. Thanks to his super strength and knowledge of quasi-dimensional engineering, this Guardian is a formidable adversary for any Super Villain threatening the universe.
In the comic books, Hulk's height varies depending on which version of himself is in control. Generally, his height lands between 7-8' tall. The most common Hulk that fans know is Savage Hulk, who is "childlike" in nature and stood at a height of 7'6".
Based on what can be deduced about his species' aging, it is possible that Groot is around 14-18 years old in The Guardians of the Galaxy Holiday Special.
While Steve Rogers gets the title of the oldest human avenger, Thor Odinson, as the mighty Asgardian God of Thunder, has a much longer life span than any of his Earth-born friends.
In Thor: The Dark World, Odin reminds Loki that Asgardians are not immortal and have lifespans as humans do, to which Loki responds: "Give or take 5,000 years." From this, it can be calculated that Asgardians live to about 5,100, with Loki being around 1050 years old in the MCU.
Loki is portrayed by Tom Hiddleston in the MCU with a height of 6'2” (1.88 m). The comic book height of Loki is 6'4” (1.93 m). Loki is a fictional prince of Asgard and god of mischief in Thor, The Avengers, and the extended Marvel franchise.
As Bruce Banner, the character is about 5 ft 9 in (1.75 m) tall and weighs 128 lbs (58.05 kg), but when transformed into the Hulk, the character stands between 7 and 8 ft (2.13 - 2.43 m) tall and weighs between 1,040 and 1,400 lbs (471.73 - 635.02 kg).
Thor. Blessed with the powers and long life of a god, Thor was undoubtedly the most powerful member of the initial version of the Avengers. Not only can he fly and transport between worlds, but he was also the only one capable of taking down Thanos, even after he had assembled all six Infinity Stones.
Thor. Thor, the god of Thunder, was undoubtedly the most powerful member of the original Avengers. His power continues to grow in the Marvel Cinematic Universe.
Gamora is based on the character of the same name from the 2008 issue of the Guardians of the Galaxy teammates. The Peter and Gamora relationship is referred to as "Starmora". If following the actors age, Gamora is approximately thirty-five years old (in human years), but is actually twenty-five in Zehoberei years.
After some quick conversions, it's revealed that with Thor being just over 1500 years old based on Avengers: Infinity War and Asgardians living for about 5000 years according to Thor: The Dark World, Thor would be closer to 24 years old in Asgardian years.
Deadpool is portrayed by Ryan Reynolds in the MCU with a height of 6'2” (1.88 m). The comic book height of Deadpool is also 6'2” (1.88 m). Deadpool, civilian identity Wade Wilson, is a fictional crude and wise-cracking mercenary, in X-Men, Deadpool and the extended Marvel franchise.
The original comics were known for their uniquely surrealist art, sometimes compared to psychedelic hallucinations. Doctor Strange is portrayed by Benedict Cumberbatch in the MCU with a height of 6'0" (1.83 m). The comic book height of Doctor Strange is 6'2.5” (1.89 m).
Ant Man is portrayed by Paul Rudd in the MCU with a human height of 5'10” (1.78 m) and the ability to shrink or grow to almost any size. The comic book height of Ant Man is 6'0" (1.83 m). Ant-Man, also known as Scott Lang, is a fictional superhero in Ant-Man and the extended Marvel franchise.
