season 1 '63/4								season 2 '64/5									season 3 '65/6										season 4 '66/7									season 5 '67/8							season 6 '68/9							season 7 '70				season 8 '71					season 9 '72					season 10 '73					season 11 '74					season 12 '74/5					season 13 '75/6						season 14 '76/7						season 15 '77/8						season 16 '78/9						season 17 '79/80						season 18 '80/1							season 19 '82							season 20 '83						20th Anniv.	season 21 '84							season 22 '85						season 23 '86				season 24 '87				season 25 '88/9				season 26 '89
	D								D						D			D		D								C	D			C			D	C						C		(M)	C									Master							M		M			M/D	D		S		D					S	D	C									M									S						BG	D											Master							C	M			BG			M	D/M/C				D	M			C		R/M	S		D					R				D		C
a	b	c	d	e	f	g	h	j	k	l	m	n	p	q	r	s	t	ta	u	v	w	x	y	z	aa	bb	cc	dd	ee	ff	gg	hh	jj	kk	ll	mm	nn	oo	pp	qq	rr	ss	tt	uu	vv	ww	xx	yy	zz	3a	3b	3c	3d	3e	3f	3g	3h	3j	3k	3m	3l	3n	3o	3r	3p	3q	3s	3t	3u	3w	3x	3y	3z	4a	4c	4b	4e	4d	4f	4h	4g	4j	4k	4l	4m	4n	4p	4q	4r	4s	4v	4t	4x	4w	4y	4z	5a	5b	5c	5d	5e	5f	5j	5h	5g	5k	5l	5m	5n	5q	5r	5p	5s	5t	5v	5z	5w	5y	5x	6a	6b	6c	6e	6d	6f	6g	6h	6j	6k	6l	6m	6n	6p	6q	6r	6s	6t	6v	6x	6w	6y	6z	7a	7b	7c1	7c2	7d	7e	7f	7g	7h	7l	7k	7j	7n	7q	7m	7p
William Hartnell (Doc.1)																		n o n - r e g.	Hartnell										Patrick Troughton (Doc.2)																					Jon Pertwee (Doc.3)																								Tom Baker (Doc.4)																																										Peter Davison (Doc.5)																				Colin Baker (Doc.6)											Sylvester McCoy (Doc.7)
Susan Foreman										Vicki										Sara	Dodo Chaplet									Jamie McCrimmon																				Liz Shaw				Jo Grant															Sarah-Jane Smith																			Leela									Roamanadvoratrelundar(1)						Roamanadvoratrelundar(2)											Nyssa															Doc.1					Peri (Perpugilliam) Brown											Melanie Bush
Barbara Wright																			Katarina							Polly Wright									Victoria Wakefield							Zoe Herriot												Yates				Yates					Yates	Doc.1				Yates		Yates			Yates	Harry Sullivan								Harry										K-9		K-9											K-9										Tegan Jovanka																									Doc.2										Ace (Dorothy)
Ian Chesterton																										Ben Jackson																			Benton							Sergeant Benton						Benton					Benton					Benton		Benton			Benton						Benton			Benton																													Adric														Vislor Turlough															Jamie
															Steven				Steven Taylor																					L-S					L-S					Brigadier Leftbridge-Stewart													L-S					L-S					L-S						L-S																																																		L-S																										L-S
																																																																Doc.2																																																																Kamelion	Susan				Kamelion
																																																																Doc.2
																																																																Zoe
																																																																Jamie
																																																																Doc.3
																																																																Liz
																																																																Yates
																																																																Doc.4
																																																																S-J S
																																																																K-9
																																																																Romana2

Legend

Extant story	No episodes of story known to exist	Incomplete archive of story	Terry Nation story (may be proscribed)	Non-Terry Nation Dalek mentions (may be proscribed)
D = Daleks	C = Cybernauts	M = Master	S = Sontarans	BG = Black Guardian	R = Rani