Os detentores de recordes por períodos mais longos podem ser medidos de maneiras diferentes.
- Vencedor de todos os tempos: A TARDIS, como um ser sensível, ela ganha ter estado com o Doctor desde a criação do personagem, com exceção de um período de exílio na Terra.
- Episódios consecutivos: Jamie McCrimmon - 113 episódios, a melhor parte de três temporadas.
- Em termos de histórias: Amy Pond desde o início da 5ª temporada até a 7ª temporada.
- Em termos de tempo de calendário: Tegan (3 dias a menos de três anos), seguido de perto por Sarah Jane (seis semanas a menos de três anos). Ambos são os únicos companheiros de viagem a aparecer durante quatro temporadas consecutivas como um show regular.
- Membro do elenco regular de longa duração: O brigadeiro apareceu por cinco anos durante Doctor Who de Jon Pertwee. Regular ou não, o personagem apareceu em mais episódios do programa do que todos os médicos da década de 1980, exceto Tom Baker.
- Em termos de tempo contínuo da história: Handles, tendo passado 300 anos com ele em Trenzalore, antes de finalmente sucumbir ao colapso.
- Maior período de tempo entre a primeira e a última aventura do POV do Companion: Atualmente vai para Rory Williams também conhecido como Rory Pond ou The Lone Centurion que esperou 1894 anos para que o Pandorica abrisse e liberasse sua amada Amy Pond antes de continuar suas aventuras com o Doctor e reiniciar o Universe - Second Series Doctor Who.
A partir da entrada no Wiki da TARDIS, em Companheiros
If the Doctor's TARDIS is considered as a companion, she tops all categories, having been a constant in the series since 23rd November 1963 and being ubiquitous across all media with the notable exception of the early Third Doctor era when the TARDIS was not featured regularly due to the Doctor's exile to Earth, as well as the Fourth Doctor stories The Sontaran Experiment and Genesis of the Daleks and the Tenth Doctor story Midnight.
In terms of consecutive individual episodes, Jamie McCrimmon is the easy winner with one hundred and thirteen episodes between TV: The Highlanders and The War Games, outdistancing most Doctors, much less all other companions. He served for the better part of three seasons, during which Doctor Who had its highest episode count. Due to changed television consumption habits, that record will almost certainly never be approached, much less broken.
In terms of stories, given that BBC Wales has a much higher story count than the original series, the high water mark has so far been set by Amy Pond, having been the primary companion for 31 full-length televised stories from the start of series 5 to her departure midway through series 7. In addition, she has cameo appearances in TV: Closing Time (where her name does still appear in the main credits) and TV: The Doctor, the Widow and the Wardrobe.
In terms of calendar time that the public would have perceived a character as being a regular on Doctor Who, the winner is Tegan. She clocks in at three days shy of three years, from her first to last regular appearances. She only very narrowly defeats Sarah Jane, who is some six weeks shy of three years as a regular character. Note that calendar years are not the same thing as seasons, because Doctor Who did not begin its seasons on the same date each year (it should be noted, however, that Tegan and Sarah Jane are as of 2012 the only travelling companions to appear during four consecutive seasons as a regular).
Special mention should be given here, too, to the character of the Brigadier. It's entirely possible that some members of the viewing community regarded him as at least a kind of regular throughout all five seasons of Jon Pertwee's Doctor Who. Although this isn't true from a contractual standpoint, he's still an incredibly long-serving member of the cast. Regular or not, the character appeared in more episodes of the programme than all of the 1980s Doctors except Tom Baker.
In terms of how long a companion has remained with the Doctor continuously within the story, Handles likely holds the current record, having spent 300 years with him on Trenzalore, before finally succumbing to breakdown.