They met when Cortese guest starred as Ruby on the show's fourth season.
1	They	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	2	nsubj	2:nsubj	Discourse=context-background:77->76:0|Entity=(137-person-acc:aggr-cf3-1-coref)|SplitAnte=1<137,134<137
2	met	meet	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	0	root	0:root	_
3	when	when	ADV	WRB	PronType=Int	6	advmod	6:advmod	Discourse=context-circumstance:78->77:0
4	Cortese	Cortese	PROPN	NNP	Number=Sing	6	nsubj	6:nsubj	Entity=(134-person-giv:act-cf1*-1-coref-Genevieve_Cortese)
5	guest	guest	NOUN	NN	Number=Sing	6	compound	6:compound	_
6	starred	star	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	2	advcl	2:advcl:when	_
7	as	as	ADP	IN	_	8	case	8:case	_
8	Ruby	Ruby	PROPN	NNP	Number=Sing	6	obl	6:obl:as	Entity=(138-person-new-cf5-1-sgl)|XML=<ref target:::"https://en.wikipedia.org/wiki/List_of_Supernatural_characters"></ref>
9	on	on	ADP	IN	_	14	case	14:case	_
10	the	the	DET	DT	Definite=Def|PronType=Art	11	det	11:det	Entity=(139-abstract-new-cf4-5-sgl(7-abstract-giv:act-cf2-2-coref-Supernatural_%28American_TV_series%29
11-12	show's	_	_	_	_	_	_	_	_
11	show	show	NOUN	NN	Number=Sing	14	nmod:poss	14:nmod:poss	_
12	's	's	PART	POS	_	11	case	11:case	Entity=7)
13	fourth	fourth	ADJ	JJ	Degree=Pos|NumType=Ord	14	amod	14:amod	XML=<ref target:::"https://en.wikipedia.org/wiki/Supernatural_(season_4)">
14	season	season	NOUN	NN	Number=Sing	6	obl	6:obl:on	Entity=139)|SpaceAfter=No|XML=</ref>
15	.	.	PUNCT	.	_	2	punct	2:punct	_
