|Season||Doctor||Companion||Episodes||Originally aired|| Viewers|
|Season premiere||Season finale|
|1||First Doctor||Ruby Thorpe||8||January 12, 2018||March 2, 2018||5.00|
|2||13||January 11, 2019||April 5, 2019||4.88|
|3||Second Doctor||13||January 10, 2020||April 17, 2020||4.98|
|4||14||January 15, 2021||April 16, 2021||4.95|
|5||TBA||14||January 2022||April 2022||4.82|
|6||14||January 2023||April 2023||4.85|
|7||Third Doctor||14||January 2024||April 2024||4.91|
Critical reception Edit
Cast and characters Edit
The Second Doctor (Ian Harding) holds the record for highest episode count.
The sixth season finale saw the return of the First Doctor and cameo appearance of the forthcoming Third Doctor; this marking the first time more than one Doctor were at the same place at the same time.
Seasons 1–6 era Edit
|David Anders||The Doctor||Main||Guest|
|Dakota Fanning||Ruby Thorpe||Main||Guest|
|Calum Worthy||Wyatt Milton||Main1||Guest|
|Lucas Till||Craig Hornsby||Recurring||Main||Guest|
|Rachel Bilson||Sandra Jensen||Main2||Recurring|
|Vanessa Morgan||Debbie Lawrence||Recurring||Main|
|Odeya Rush||Ramona Bowser||Main3|
|Scott Wolf||Nathan Thorpe||Recurring||Guest|
|Melissa Peterman||Kathryn Thorpe||Recurring||Guest||Guest|
|Ariane Rinehart||Debbie Maes||Recurring|
- ^1 Worthy is credited as a series regular in one episode in Seasons 2 and 3.
- ^2 Bilson is credited as a series regular in one episode in Season 4.
- ^3 Rush is credited as a series regular in one episode in Season 5.
Seasons 7– era Edit
Note: Season 6 appearances are included with characters that appeared season 7 onward. Vanessa Morgan continues her role as Debbie Lawrence for the seventh consecutive year, and as a main character after being promoted in the fifth season. Morgan announced her exit of the series after season 6, stating that she had spent 7 years on the series and 3 which she committed to and thought it was time to move on. Morgan later stated that she stayed on for season 7 to "get a taste of the new era and Doctor of the series," and wanting to give closure to the longest running character.
|Bradley James||The Doctor||Guest||Main|
|Vanessa Morgan||Debbie Lawrence||Main|
|Lucas Grabeel||Cyrus O'Rourke||Main|
|Tiffany Espensen||Emilia Welsh||Main1|
|Chris Rankin||Vincent Gilford||Main|
|Matthew Patrick||Hal Lawrence||Guest|
|Leah Remini||Iva Lawrence||Guest|
- ^1 Espensen is credited as a series regular in one episode in Season 7.
First Doctor Edit
|Doctor Who character|
|First appearance||"The Journey Begins"|
March 27, 2020 (aged 953)|
Dalek City, Dalek Islands
|Regenerated into||Second Doctor|
ETV reportedly approached several other actors before David Anders accepted the role, though not being the network's first choice. When asked by some people, ETV refused to reveal the actors who declined the role.
Second Doctor Edit
Ian Harding portrayed The Second Doctor, making his first appearance in the season 2 finale and continuing his role in seasons 3 to 6. The Second Doctor is often described as the best Doctor on the series, being why he received more onscreen time.
On 13 January 2022, Ian Harding stated in an exclusive interview that he was contracted to portray The Doctor until season 6, should the series still be going. Harding then clarified that he would not portray The Doctor further after season 6 due to wanting to pursue other roles as well; though stated that he would "definitely" sign on for potential guest appearances.
In a surprise, Ian Harding was revealed as the Second Doctor in a cameo appearance on the season 2 finale. ETV later stated that [Harding] was their first choice for The Doctor in season 1, but he declined due to "the lack of ratings in ETV series'". After season 1 aired, Harding contacted ETV and they "immediately" set up plans for him as the Second Doctor after season 2. The casting of the Second Doctor marks the first time when only one actor was considered for the role.
Third Doctor Edit
A to-be-determined actor will portray The Third Doctor, who will likely make his first appearance in the season 6 finale.
ETV continued with its format of not creating a public casting call, due to wanting "big names to portray The Doctor" and wanting to keep the time of the Second Doctor's death secret.
In May 2023, an insider source leaked news of actors who were supposedly in the running to portray The Third Doctor. These include: Blake Harrison, Danila Kozlovsky, Greg Finley, Chris Rankin, Bradley James, Kayla Ewell, Brittany Snow, Gal Gadot, Troian Bellisario and Krysten Ritter. An impressive amount of ten actors potentially in the running would not be a surprise, due to the positive reception from the Second Doctor.
However, this list eventually became small as Kozlovsky denied that he was running, followed by Bellisario and Ewell, leaving the list with 7 potentials. Snow later stated that she was "not called back" for an audition, and Harrison stated he did not get the part; this news also verified that the list was in fact true. A week later, Finley stated that "the list is probably fake" and that he was not interested in the part, leaving Rankin, James, Gadot and Ritter as potentials.
On September 2024, ETV published a clip on their channel revealing Bradley James as the actor portraying the Third Doctor. In an press release, ETV also stated that both male and female actors were considered for the role but that James was considered the best candidate.
Fourth Doctor Edit
Following Bradley James' decision to leave the show after season 9 (one less season than Harding), it was speculated that either Chris Rankin, Gal Gadot or Krysten Ritter would be the Doctor given their potential candidacy role for the Third Doctor. ETV announced of a Summer Special episode revealing the Fourth Doctor, which would consist of a live televoting system. ETV went on, saying that, "We considered many options for the Fourth Doctor, but we then decided that choosing James' successor would be too much a difficult task for us, which is why we decided to allow you, the viewers to help us choose." ETV filmed the Fourth Doctor's regenerations into the four candidates, consisting of two male and female. One month before the broadcast, ETV finally announced that Chris Rankin, Gal Gadot, Mark Pellegrino and Krysten Ritter would be the Doctor candidates.
ETV spoke on the results, stating, "When you look at the first two rounds, it's obvious that there is no clear Doctor. Pellegrino and Ritter, both talented actors, were unfortunately overshadowed by Gadot and Rankin who overshadowed them. But, that was obviously expected as the people were not ready for change, but by the final round people had somewhat got used to the idea of a female Doctor. We are also honoured to announce that The Fourth Doctor will be accompanied by.. Chris Rankin!
|Actor||Day 1||Day 2||Day 3|
|Gal Gadot|| 2nd |
| 1st |
| 1st |
|Chris Rankin|| 1st |
| 2nd |
| 2nd |
|Krysten Ritter|| 3rd |
| 3rd |
|Mark Pellegrino|| 4th |
In 2021, ETV announced following Dakota Fanning and Lucas Till's departures that they had commissioned on a spin-off based on Scott Wolf's character Nathan Thorpe. The show premiered in 2022. The show ended its run in 2025 with a total of five seasons totaling 27 episodes. In 2026, the Doctor Who: Halloween Special focuses on Fighting Evil, with some character additions, which was watched more than any of the spin-off's episode and led to some characters' return to Doctor Who.
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