• William Panji Putra Manalu
• William Partogi Hutagaol
• William Partogi S.
• William Parulian Damanik
• William Patiapon

• William Patiung
• William Pattipawae
• William Paul Tjiu
• William Peterson L. Rato
• William Piere Manik

• William Pinandang
• William Poetra Lisa
• William Prabowo
• William Pratama Idi
• William Pratama Rusli

• William Pukarta
• William Purnama
• William Putra Simamora
• William Putrawardana
• William Qisbul Fathoni

• William Rafel Gani
• William Rasyid Cahyono
• William Reinhard Hutajulu
• William Rere
• William Rhobet

• William Richard Lie
• William Rima
• William Risang Abi Rangga
• William Robert
• William Robert Budiono

• William Robert Tonapa
• William Robet Utomo
• William Robi
• William Rocky Setiawan
• William Ropena

• William Rozi
• William Rumuy
• William S
• William S. Edwin
• William S.a. Batulangi

• William Sahputra
• William Sahrul
• William Salim
• William Salladin Al-farabi Sudrajat
• William Salomo Girsang

• William Salvador Gudipun
• William Samosir
• William Sanjaya Sudirja- Joeng
• William Santo
• William Santoso Effendi

• William Saputra
• William Saragih
• William Saribu
• William Saroy
• William Selig Aka

• William Septevenus
• William Setiawan
• William Shofi Masko
• William Siagian
• William Siburian

• William Sidharta. G
• William Sinaga
• William Sion Tanggara
• William Situmorang
• William Solana Muhamad

• William Soputan
• William Sosrowiguno
• William Stanley Roth
• William Steflandel Purba
• William Steven

• William Steviano Lesa
• William Sudarto
• William Suherman
• William Suherman Tanujaya
• William Sumargo