Speech bubble
Also written: speech balloon, word balloon, dialogue bubble
A speech bubble is the outlined shape holding a character's spoken words inside a comic panel, with a tail pointing at whoever said them. Readers take bubbles in the panel's reading order, so where a bubble sits decides who is heard first.
Placement is the script’s punctuation
A bubble does two jobs at once: it carries words, and it tells the reader when to read them. The second job is the one beginners drop. Within a panel, bubbles are read in the same direction as the page — left to right and top to bottom in English, right to left in untranslated manga — so the physical position of a bubble is the turn order of the conversation. Put the reply above the line it answers and the exchange plays backwards, no matter how the script was written.
The reliable habit: place the first speaker’s bubble in the top-leading corner of the panel, then step downwards and across. If two characters need to alternate three times, that is usually a sign the moment wants two panels instead of one.
Never cover the face
The most common lettering mistake is a bubble parked over the thing the panel exists to show — usually a face, sometimes the hand holding the knife. The artwork and the dialogue are competing for the same rectangle, and the letterer always wins, which is why the artist has to leave room during layout rather than after.
Practical version: when roughing a panel, draw the bubble shapes as empty blobs before drawing the figures. If the composition still works with those blobs blocked out, the lettering will fit. This is exactly what thumbnails are for.
Word count is a format constraint, not a style choice
Print comics tolerate long bubbles because the page is physically large and the reader’s eye can rest. A phone cannot. In a vertical-scroll webtoon, roughly 8–15 words per bubble is the ceiling before the text either shrinks below comfortable reading size or the bubble swallows the panel. Print pages stretch to perhaps 25 words, and 25 is already a lot.
When a line will not fit, the fixes in order of preference are: cut it, split it into two bubbles joined by a narrow neck, or move the exposition into a caption box. Shrinking the font is not on the list.
Shape carries tone
The outline itself is information. A smooth oval is a neutral speaking voice. A jagged, spiked outline is a shout or a voice through a radio. A wobbly, thin line is a whisper or a dying character. A rectangular hard-edged bubble usually reads as mechanical or electronic. Readers learn these conventions without being taught them, which means breaking one accidentally reads as a mistake rather than a choice.
The one element that is never decorative is the tail — it is the only thing in the panel that names the speaker.
Related terms
- Bubble tail — A bubble tail is the pointed spur extending from a speech bubble towards the character speaking, which is what assigns the words to them. A tail aimed at the wrong person is the most confusing mistake in comic lettering.
- Thought bubble — A thought bubble is a cloud-edged container holding what a character is thinking rather than saying out loud, connected to them by a trail of shrinking circles instead of a pointed tail.
- Caption box — A caption box is a rectangular block of text set apart from the speech bubbles, carrying narration, internal monologue, or a place-and-time marker. It has no tail, because nobody in the panel is saying it aloud.
- Panel — A panel is a single framed image in a comic that shows one moment of the story. Its border marks where that moment ends, its size controls how long the reader spends there, and the sequence of panels is the sequence of time.