Thaddeus Ross is a fictional character portrayed by both William Hurt and Harrison Ford in the Marvel Cinematic Universe (MCU) film franchise, based on the Marvel Comics character of the same name. He is depicted as a United States Armed Forces lieutenant general before serving as Secretary of State, and is later elected as the President of the United States. He is also the father of Betty Ross, with whom he has had a complex relationship.

Ross leads the manhunt for Bruce Banner and inadvertently helps create the Abomination. After retiring from the military and various health issues, Ross serves as Secretary of State, and presents the Avengers with the Sokovia Accords leading to their disbandment. After being revived from the Blip, Ross is elected president which puts him at odds with Sam Wilson. Ross turns into a Red Hulk after ingesting gamma-radiated pills from a revenge-driven Samuel Sterns, which leads to him destroying the White House. He later stands down as president and is incarcerated in the Raft.

Hurt portrayed Ross in The Incredible Hulk (2008), The Consultant (2011), Captain America: Civil War (2016), Avengers: Infinity War (2018), Avengers: Endgame (2019) and Black Widow (2021). After Hurt's death in 2022, Ford subsequently portrayed the character in Captain America: Brave New World (2025). Both actors received generally positive reviews for their performances and the gravitas they brought to the role. Alternate versions of the character appear in various Disney+ animated series, voiced by both Michael Patrick McGill and Travis Willingham.

Development and casting In late 2006, Marvel Studios announced on their website that their next project would be a reboot of Hulk (2003), set for release in 2008. By June 2007, American actor William Hurt was cast to play the comic character Thaddeus "Thunderbolt" Ross in the film, eventually titled The Incredible Hulk (2008). The Hollywood Reporter reported that movie would see Ross dedicating his life to capturing the Hulk, who was set to be played by American actor Edward Norton. Sam Elliott, who portrayed Ross in the 2003 film, expressed disappointment at being replaced stating he wished Marvel would "have considered using some of the 2003 cast". Despite this, he praised the new cast and added that he approved of Hurt's casting.

Hurt died on March 13, 2022. Producer Nate Moore noted that there were always plans to turn Ross into his comic counterpart Red Hulk, which was told to Hurt prior to his death and reportedly excited him. After Hurt's death, Moore noted that Marvel began to reevaluate how to proceed with Ross's story or come up with a new plot until American actor Harrison Ford reached out to Kevin Feige about potentially appearing in a Marvel film. The role was announced to be recast in October 2022, with Ford replacing Hurt. In an interview with Entertainment Weekly, Ford called the idea of replacing Hurt a "daunting prospect", adding that it's a "delicate thing to think about, stepping into the shoes of someone else that has played a character so successfully and so treasured by the Marvel universe [...] I had the emotional opportunities to continue what he had done and bring it to some kind of conclusion".

Characterization Depictions and appearances The character, played by William Hurt, first appeared in the Marvel Cinematic Universe (MCU) film The Incredible Hulk (2008) as a high-ranking military officer who was obsessed with recreating the serum that gave Steve Rogers his abilities. Scientist Dr. Bruce Banner uses gamma radiation to try to achieve results, which accidentally transforms him into a monster nicknamed the Hulk. Screen Rant writer Richard Craig noted that Ross saw the Hulk as a "potential weapon". Ross is portrayed as one of the film's antagonists hunting Banner down, and later recruits British Royal Marine Emil Blonsky to take an alternate version of Banner's serum which turns him into the Abomination. Hurt described Ross as complicated and conflicted, saying that he wants "Hulk's power, but is humiliated by Hulk's conscience: he actually sees and recognizes that it's more developed than his own, even though he's a patriot and a warrior for his country. He's sacrificed enormously for that purpose, but at the expense at times of his humanity which he occasionally recovers". Hurt later reprised his role for the Marvel One-Shot The Consultant (2011) via archival footage from the final scene of The Incredible Hulk. On sharing the scene with Robert Downey Jr's Tony Stark, he felt Marvel had "a lot of guts" to crossover films.

After eight years, Hurt next appeared as Ross in Captain America: Civil War (2016). On his role, Hurt called it "a completely new iteration", describing Ross as more mature and less like the comic book version he had incorporated and embodied in The Incredible Hulk. The film saw Ross transitioning from a military officer into politics, becoming the United States Secretary of State, and presenting the Avengers with the Sokovia Accords, a legislation designed to regulate superheroes. Ross's crackdown on the Avengers lead to a rift between Steve Rogers and Tony Stark and the subsequent breaking apart of the team. Director Joe Russo noted that Red Hulk was considered for the movie, but was decided against due to the excess amount of characters in the narrative. In 2017, director James Gunn expressed interest in making a film featuring both Hulk and Red Hulk, but due to conflicts with Universal Pictures over film rights, the film never project never entered development. Ross's appointment as Secretary of State was covered in the second season of the faux digital series WHIH Newsfront (2016) as promotion for Civil War, and he was also mentioned in Agents of S.H.I.E.L.D.: Slingshot (2016).

Hurt went on to reprise the role in Avengers: Infinity War (2018) and Avengers: Endgame (2019). The former saw him enforcing the Accords on James Rhodes, while the latter saw him attending Tony Stark's funeral after falling victim to the Blip. Screenwriter Christopher Markus also stated that the writers briefly considered bringing Ross as Red Hulk in Endgame. Hurt appeared as Ross in Black Widow (2021) which saw the character pursuing Natasha Romanoff for violating the Accords. On his character, Hurt noted that there was a "fatigue setting" in Ross after trying to control the Avengers, adding that Ross "imagined, back when he was contending with Hulk, that he was the conquering soldier going around the world, but things have gotten more complex and difficult". Despite this, Hurt felt that the character still had a "sense of dignity" but that "he's the soldier on the last hill at this point".

In Captain America: Brave New World (2025), Ross, now played by Harrison Ford after Hurt's death, has been elected the President of the United States (POTUS). During the film, he clashes with the new Captain America, Sam Wilson, after an assassination attempt made on Ross by a mind-controlled Isaiah Bradley. The assassination attempt causes political tension between Ross and Ozaki, the Prime Minister of Japan, and threatens Ross's international treaty to mine and distribute Adamantium to the world. Ross becomes the Red Hulk after ingesting gamma pills given to him by Samuel Sterns. As the Red Hulk, Ross destroys the White House, fights Captain America (who talks and calms him down), and is later imprisoned in the superhuman prison, the Raft. People writer Rebecca Aizin called the situation "ironic" as Ross was locked in the same prison that he locked up Roger's allies in Civil War. Additionally in the film, Ross's security advisor, Ruth Bat-Seraph is a former Black Widow assassin, in which Collider writer Gregory Mysogland noted that this implied Ross "helped neutralize the Red Room after [Romanoff] publicly exposed it and freed the other Widows", which "explains how he and [Bat-Seraph] joined forces". Ford hoped he could play the character again, saying that there is a "story in which he can develop into something other than the Red Hulk. I think we have the capacity to shift shape between Hulkness and humanity [...] I was very happy with the opportunity to play in this playground".

In 2022, there were conflicting reports about Ford being set to reprise his role in Thunderbolts* (2025), with The Hollywood Reporter reporting that he would, while Variety reported that he would not. By 2024, various media outlets suggested that Ford would not be appearing the film. While Ross did not appear in the film's final script, Ross's rampage as Red Hulk was cited by Valentina Allegra de Fontaine during a hearing about her involvement in O.X.E's "Sentry" project, as a reason for the need of more super-powered individuals. After the film's release, writer Eric Pearson noted in an interview that early versions of his script included Ross's Red Hulk as the villain, but was cut out due to Marvel's plans for the character in Brave New World.

Relationship with Betty

In The Incredible Hulk, Ross's daughter, Dr. Elizabeth "Betty" Ross, helped create the primer that allowed Bruce Banner to "absorb gamma radiation" which ultimately turned him into the Hulk. After Banner's transformation, Ross's character arc focuses on him chasing the Hulk, which puts him at odds with Betty as she is in love with Banner. Betty opposes her father which causes friction and tension between the two, and they subsequently become estranged. Betty's actress, Liv Tyler, noted that Ross and Betty have "had a very painful and difficult relationship. She doesn't speak to him because he kind of destroyed her life".

Throughout Captain America: Brave New World, Ross is shown trying to reconnect with Betty, now his estranged daughter. Their relationship was described as the heart of the film, with director Julius Onah explaining that Betty represented a "human side" to Ross. The biggest motivating factor for Ross becoming president was seeking reconciliation with Betty, as it was Ross proving to her that he had "turned a new leaf". Talking on The Official Marvel Podcast, Onah noted that in the film, the relationship between Ross and Betty is also a large part of the former simultaneously "trying to cement his legacy" and redefine his identity as both a person and a leader. Cherry blossoms serve as a recurring motif in the film symbolizing Ross and Betty's father-daughter bond, recalling their visits to the Tidal Basin cherry blossom trees during Betty's childhood; this memory ultimately brings an end to Ross's rampage as the Red Hulk. In creating Ross's theme score, American composer Laura Karpman explained that his theme had to reflect his presidential position while also reflecting the loss and mourning of his relationship with his daughter.

A now-deleted alternate ending to the film was also filmed which saw Betty attending a funeral, likely that of Ross after his battle as the Red Hulk with Wilson. Set photos from 2023 confirmed this, and showed Tyler as Betty attending a funeral alongside Wilson and Bat-Seraph. Despite this, Onah noted that they never filmed a version of the movie where he "explicitly died", but rather left his fate ambiguous.

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