Cece Isicam

Sisi (aka Lili and Lola's Maman) is voiced by Banafsheh Taherian per https://twitter.com/BaniTaherian/status/1032358942863634432

Lili and Lola are daughters. Nima is their (Not) Persian dad, possibly Sisi's husband.

Aka Mama http://liliandlolashow.com/characters_mama.html an ER doctor

Alternate spelling
The closed captions for Picture Perfect transcribe her husband's line as "Cece, look".