"Being Human," the U.S. adaptation of the British series, was canceled after four seasons due to declining ratings and viewership. Despite a dedicated fanbase, the show struggled to maintain its audience and failed to achieve the same level of critical acclaim as its predecessor. The network, Syfy, decided to focus on new programming and projects that could potentially attract a larger audience. Ultimately, the combination of ratings decline and a shift in network strategy led to its cancellation.

In the film "Being Human," the lead character, played by Robin Williams, goes through various stages of life, reflecting different aspects of humanity. The decision to change portrayals or use different actors can be attributed to the narrative structure that requires a visual representation of growth and transformation over time. However, it’s important to note that "Being Human" primarily features Robin Williams throughout, showcasing his character's evolution and experiences, rather than a change in actors for the same role.

"Being Human" is a supernatural drama series that aired in various iterations, including a UK version and a US adaptation. The show follows a ghost, a vampire, and a werewolf sharing a house and navigating their human and supernatural lives. It received mixed to positive reviews for its character development and unique premise, often praised for its blend of humor and drama. However, opinions on its execution and pacing vary among viewers. Overall, if you enjoy character-driven stories with a supernatural twist, it might be worth watching.

Aidan Waite, portrayed by Sam Witwer, left the show "Being Human" mainly due to the character's narrative arc reaching a conclusion and the actor's desire to pursue other projects. The series, which aired from 2011 to 2014, featured Aidan as a vampire struggling with his nature and desire for redemption. As the show progressed, the character's journey evolved, leading to significant developments in his story. Additionally, Witwer's commitment to other roles and creative endeavors contributed to his departure from the series.