4 April

A list of events which occurred on the 4th of April.
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:Joe Orlando is born.
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:Brad Forrest is born.
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:Kenneth Mars is born.
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:Vicente Alcázar is born.
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:Darleen Roddenberry is born.
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:Robert Budaska is born.
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:Bob Rozakis is born.
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:Mario Roberts is born.
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:Casey Biggs is born.
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:Gregory Wagrowski is born.
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:Cristian Letelier is born.
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:Phil Morris is born.
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:Phil Maldonado is born.
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:Martin Allan Kloner is born.
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:Scott McElroy is born.
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:Revised story outline submitted for the undeveloped Original Series episode "BEM" by David Gerrold. The episode is later produced for the animated series in .
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:The Twelfth UK Story Arc continues in TV21 & Joe 90 #28 with the fifth of eight installments.
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:Matthew MacCaull is born.
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:Danielle Thorpe is born.
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:Twenty-ninth day of filming on . Doctor Gillian Taylor's first visit to the with Admiral Kirk is filmed today.
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:Third day of filming on .
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:Fifth day of filming on .
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:Fourth day of filming on .
:Visual effects unit at Image G filmed the solar surface and effects scenes for .
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:Seventeenth day of filming on 
:Fifth day of filming on . Enterprise-B bridge scenes are filmed today.
:First day of filming on .
:CIC Video releases Next Generation volume 78 and Deep Space Nine volume 12 on VHS in the UK.
:Mark Dempsey dies.
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:Third day of filming on .
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:Seventh day of filming on .
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:Second day of filming on .
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:Thirteenth day of filming on .
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:Sixth day of filming on .
:William Purcell dies.
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:Sixth day of filming on .
:Anthony Caruso dies.
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:Star Trek: Fan Collective - Time Travel DVD released in Region 1.
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:Martin R. Burke dies.
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:Fifty-ninth day of filming on .
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:Carmine Infantino dies.
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: airs.
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: premieres on Paramount+.
: premieres on Paramount+.
;Unknown year
:Nilo Ghajar is born.
de:4. April
es:4 abril
it:4 aprile
nl:4 april
pt:4 de abril
ru:4 апреля
sv:4 april