According to Temmosus, friendship grew with time. Those bonded by friendship were known as friends. (TV: The Daleks) The Eleventh Doctor claimed to never forget his friends. (PROSE: Hello! [+]Tom MacRae, The Crash of the Elysium tie-ins (Punchdrunk and BBC, 2011).)
Friendship was rare among the Sevateem. (AUDIO: Chronoclasm) Daleks did not have friends. (TV: Eve of the Daleks)
Friendship was a value that was taught on Sesame Street. (PROSE: Writer's Notes [+]James Goss, The Scorchies (Big Finish Productions, 2013).)
The Doctor's friends[]
According to the Eleventh Doctor, he never forgot his friends. (PROSE: Hello! [+]Tom MacRae, The Crash of the Elysium tie-ins (Punchdrunk and BBC, 2011).) Some of the individuals the Doctor counted as his friends, at various points, included: Sarah Jane Smith, (TV: The Seeds of Doom, The Masque of Mandragora) K9, (TV: Underworld, The Invasion of Time, The Pirate Planet) Bernice Summerfield, (AUDIO: The Unknown) Alistair Gordon Lethbridge-Stewart, (AUDIO: Minuet in Hell) Charley Pollard, (AUDIO: Embrace the Darkness) Donna Noble, (TV: The End of Time) Clara Oswald, (TV: Heaven Sent) Graham O'Brien, Ryan Sinclair, and Yasmin Khan. (TV: Resolution)
Charley Pollard and the Eighth Doctor expressed their love for each other as friends. (AUDIO: Neverland)
The Doctor also had many best friends. (TV: The Seeds of Doom, The Masque of Mandragora, Underworld, AUDIO: The Unknown, Quantum of Axos, etc.)
Early on in his life, the Fifteenth Doctor reflected on the new friends he would have. (PROSE: "Heroes of Time" [+]Part of Whotopia: The Ultimate Guide to the Whoniverse, Simon Guerrier, Una McCormack and Jonathan Morris, BBC Books (2023).)
History[]
In 1963, the First Doctor described himself and Susan Foreman as being without friends after being cut off from their own planet. (TV: "An Unearthly Child" [+]Part of An Unearthly Child, Error: Code 2 - no data stored in variables, cache or SMW.)
In 100,000 BC, Ian Chesterton told Hur that he was her friend, but she did not understand the term, and thought that "Friend" was his name. (TV: An Unearthly Child [+]Anthony Coburn, adapted from The Pilot Episode (Anthony Coburn), Doctor Who season 1 (BBC tv, 1963).)
In an interview hosted by Mickey for his website in early 2006, Henry Van Statten referred to aliens as "our friends up there". (PROSE: Henry Van Statten [+]BBC webteam, Who is Doctor Who? (BBC, 2005).)