A cameo/supporting character deserves a standalone film of it's own

A standalone film is made on Bob Biswas.

Which character deserves a standalone film of it's own?

What about srk and his pistachio blazer over acting 

Saba (ADHM) 

Poo (K3G)

Rosie (Talaash)

Raja Awasthi (Jimmy Shergill - TWMR)

Rudra Bhaiya (Pankaj Tripathi- Stree)

Sakool (Mohammed Zeeshan Ayyub- Arjun Patiala)

Chatur (3 Idiots)

Circuit

Miss Braganza

Dr Baldev Chaddha (Vicky Donor)

Dev Kumar Mallik (Dhamaal)

Agent Aditi from War (Anupriya Goenka)

Master Pillai (Padosan...if only Mehmood was alive 💔)

In KJo's universe, I'd like to see a Mia (SOTY 2) and Rohan (SOTY 1) meet years after St Theresa's and they're both aluminis, discuss all the mistakes they made and they help each other to become better people.

Meghna - JTYJN 

Samia Siddiqui - Veer Zaara 

Pooja - Dil Toh Pagal Hai 

Aman - Kuch Kuch Hota Hai 
Naina - K3G (we never got to know what happened to her) 

majorly these 5  

Ratna Pathak Shah's char from JTYJN.

This couple

Babban - Tezaab

https://www.youtube.com/watch?v=N5ccz9nF01I

Chotisi Baat - Colonel Julius Nagendranath Wilfred Singh

https://www.youtube.com/watch?v=dgihfftI8tM